* {
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
    font-family: 'Phetsarath OT';
    font-style: normal;
}


/* start navigation */

.navigation {
    height: 96px;
    background-color: #fff;
    display: flex;
    justify-content: space-between;
    width: 80%;
    margin: auto;
    align-items: center;
}

.main_content {
    margin-left: 10%;
    margin-right: 10%;
}

#nav {
    list-style-type: none;
    display: flex;
    justify-content: space-between;
}

.nav_options {
    line-height: 96px;
}


/* #nav > li{
    display: inline-block;  
} */

#nav>li>a {
    color: #fff;
}

#nav li a {
    text-decoration: none;
    line-height: 24.2px;
    padding: 0px 24px;
    font-weight: 500;
    font-size: 20px;
    line-height: 24px;
    color: #000000;
}

#nav li {
    white-space: nowrap;
}

.nav_button {
    line-height: 96px;
    display: flex;
}

.nav_button button {
    width: 127px;
    height: 48px;
    font-weight: 600;
    font-size: 16px;
    line-height: 24px;
    background: #fff;
    border: none;
}

.nav_button button:hover {
    background: #F26522;
    border-radius: 4px;
    color: #fff;
}

.but_signin {
    margin-right: 20px;
}

.nav_logo {
    /* margin-top: 24px; */
    min-width: 115px;
    width: 115px;
    height: 48px;
    background: url('./img/logo_laoedu.png') center / cover no-repeat;
}

/* start dropdown */
   .dropdown1 {
    display: none;
   }
 
   .dropdown2{
     position: relative;
     display: inline-block;
   }
   
   .dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 127px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    padding: 12px 16px;
    z-index: 1;
    top: 32px;
    width: 100%;
  }
 
   .dropdown2:hover .dropdown-content {
     display: block;
   }
 
   .drop_main{
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 8px 12px;
    display: -webkit-flex;
    -webkit-justify-content: center;
    height: 32px;
    border: 1px solid #D8DAE5;
    border-radius: 4px;
  }
 
   .dropdown_options {
     display: flex;
     align-items: center;
     padding: 5px 0;
     margin-top: 5px;
   }
 
   .dropdown-content img {
     width: 20px;
     height: 20px;
     margin-right: 8px;
     /* margin-top: 3px; */
     border-radius: 0.22rem;
     }
 
   .text_drop{
     font-family: 'Inter';
     font-style: normal;
     font-weight: 500;
     font-size: 12px;
     line-height: 16px;
     text-align: center;
     width: 53px;
   }
 
   .img_drop {
     margin-top: 3px;
     padding-right: 12px;
   }
 
   .img_drop img{
     width: 18px;
     height: 11.9px;
   }
 
   .dropdown-content a{
     text-decoration: none;
     font-family: 'Inter';
     font-style: normal;
     font-weight: 500;
     font-size: 13px;
     line-height: 16px;
     text-align: center;
     color: #67a7ac;
     /* padding-top: 3px; */
   }

   #btn_clear{
        display: none;
        border: none;
        background: #FFF;
        width: 30px;
        height: 30px;
        background:url(img/add.png) no-repeat right top;
    }

    #btn_clear:focus{
        border: none;
        outline: none;
    }
    #btn_add{
        border: none;
        background:url(img/align-left.png) no-repeat right top;
        width: 30px;
        height: 30px;
    }
  /* end dropdown */

.list_nav{
    display: none;
}

.nav_all{
    width: 35%  ;
}

.nav_all_option{
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.nav_clear{
    display: none;
    pointer-events: none;
}
  
/* end navigation */

/* start content */

.title{
    font-weight: 700;
    font-size: 32px;
    line-height: 150%;
}

.title_introduce_vn2{
    display: none;
}

.title_introduce_test{
    position: relative;
}

.title_introduce_test_lao{
    position: relative;
    white-space: nowrap;
}

.title_introduce_test_vn{
    position: relative;
    white-space: nowrap;
}

.test2_vn {
    position: absolute;
    top: 32%;
    left: 3%;
}

.test2_en {
    position: absolute;
    top: 32%;
    left: 3%;
}

.test2_lao{
    position: absolute;
    top: 30%;
    left: 45%;
}

.test2_lao img{
    width: 86%;
}

.test2_vn img{
    width: 65%;
}

.test2_en img {
    width: 100%;
}

.title_fin{
    display: flex;
}

.content_main {
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    margin-top: 16px;
}

.but_download {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 12px 32px;
    gap: 8px;
    width: 218px;
    height: 48px;
    /* Orange / O400 */
    background: #F26522;
    border-radius: 4px;
    margin-top: 24px;
}

.but_download button {
    width: 100%;
    height: 100%;
    font-weight: 600;
    font-size: 16px;
    line-height: 24px;
    /* identical to box height, or 150% */
    text-align: center;
    /* Neutral/Background White - N0 */
    color: #FFFFFF;
    background-color: #F26522;
    border: none;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
    cursor: pointer;
}

.content_introduce {
    position: relative;
    width: 50%;
}

.test {
    position: absolute;
    left: -84px;
    top: 36px;
}

.background_content img{
    width: 100%;
 }

.image_content {
    width: 50%;
    height: 100%;
    position: relative;
    height: 500px;
    margin-left: 30px;
    /* background: url("img/Blob.png") center / cover no-repeat; */
    /* border-radius: 24px; */
}

.img-content1 {
    position: absolute;
    right: 0;
    top: 9%;
    width: 100%;
}

.img-content1 img{
    width: 102%;
}

.img-content2 {
    position: relative;
    right: 30px;
    width: 100%;
    top: 11%;
}

.img-content2 img{
    width: 105%;
}

.img-content3 {
    position: absolute;
    left: 75%;
    top: 17%;
    width: 45%;
}

.img-content3 img{
    width: 100%;
}

.img-content4 {
    position: absolute;
    left: 97%;
    top: 0%;
    width: 10%;
}

.img-content4 img{
    width: 100%;
}


.content {
    display: flex;
    justify-content: space-between;
    margin-top: 58px;
    align-items: center;
}


/* end content */


/* start content_title */

.content_title {
    display: flex;
    justify-content: space-between;
    margin-top: 210px;
}

.content_title_school {
    width: 384px;
    height: 240px;
    border: 1px solid #D9D9D9;
    border-radius: 24px;
    margin-right: 24px;
}

.title_school {
    display: flex;
}

.img_title {
    width: 40px;
    height: 40px;
    background: url("img/Frame\ 46789.png") center / cover no-repeat;
    border-radius: 50%;
    margin-top: 24px;
    margin-left: 16px;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.title_options {
    width: 99px;
    height: 28px;
    font-weight: 600;
    font-size: 18px;
    line-height: 28px;
    /* identical to box height, or 156% */
    color: #000000;
    margin-top: 30px;
    margin-left: 12px;
    /* Inside auto layout */
    flex: none;
    order: 1;
    flex-grow: 0;
}

.content_option {
    width: 301px;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    /* or 150% */
    padding-right: 15px;
    margin-left: 68px;
    color: #000000;
}

.content_title_teacher {
    box-sizing: border-box;
    width: 384px;
    height: 240px;
    border: 1px solid #D9D9D9;
    border-radius: 24px;
    margin-right: 24px;
}

.title_teacher {
    display: flex;
}

.img_title_teacher {
    width: 40px;
    height: 40px;
    background: url("img/Frame\ 46790.png") center / cover no-repeat;
    border-radius: 50%;
    margin-top: 24px;
    margin-left: 16px;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.title_options_teacher {
    width: 82px;
    height: 28px;
    font-weight: 600;
    font-size: 18px;
    line-height: 28px;
    /* identical to box height, or 156% */
    color: #000000;
    margin-top: 30px;
    margin-left: 12px;
    /* Inside auto layout */
    flex: none;
    order: 1;
    flex-grow: 0;
}

.content_option_teacher {
    width: 303px;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    /* or 150% */
    margin-left: 68px;
    padding-right: 15px;
    color: #000000;
}

.content_title_student {
    box-sizing: border-box;
    width: 384px;
    height: 240px;
    border: 1px solid #D9D9D9;
    border-radius: 24px;
}

.title_student {
    display: flex;
}

.img_title_student {
    width: 40px;
    height: 40px;
    background: url("img/Frame\ 46791.png") center / cover no-repeat;
    border-radius: 50%;
    margin-top: 24px;
    margin-left: 16px;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.title_options_student {
    width: 256px;
    height: 28px;
    font-weight: 600;
    font-size: 18px;
    line-height: 28px;
    /* identical to box height, or 156% */
    color: #000000;
    margin-top: 30px;
    margin-left: 12px;
    /* Inside auto layout */
    flex: none;
    order: 1;
    flex-grow: 0;
}

.content_option_student {
    width: 301px;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    /* or 150% */
    padding-right: 15px;
    margin-left: 68px;
    color: #000000;
}



/* start content_new_school */

.new_school {
    width: 50%;
    margin-left: 40px;
}

.content_new_school {
    display: flex;
    justify-content: space-between;
    margin-top: 86px;
    margin-bottom: 300px;
    align-items: center;
    /* position: relative; */
}

.img_content{
    width: 50%;
    border-radius: 24px;
    position: relative;
}

.img_content img{
    width: 100%;
    height: 100%;
}

.img_content_intro{
    position: absolute;
    top: -150px;
    left: -210px;
}

.img_content_new {
    width: 50%;
    height: 430px;
    border-radius: 24px;
    position: relative;
}

.img-content-new1 {
    position: absolute;
    left: -26%;
    top: 0%;
}

.img-content-new1 img{
    width: 100%;
}

.img-content-new2 {
    position: absolute;
    left: -26%;
    top: 66%;
}

.img-content-new2 img{
    width: 100%;
}

.img-content-new3 {
    position: absolute;
    top: -11%;
    left: -28%;
}

.img-content-new3 img{
   width: 80%;
}

.img-content-new4 {
    position: absolute;
    left: 40%;
    top: 21%;
}

.img-content-new4 img{
    width: 61%;
}

.img_content2{
    display: none;
}

.title_content_new {
    width: 100%;
    font-weight: 700;
    font-size: 28px;
    line-height: 150%;
    /* or 42px */
    color: #1E1E1E;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.content_school_new1 {
    display: flex;
    margin-top: 24px;
}

.img_school_new1 {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
    margin-top: 8px;
}

.school_new1 {
    width: 100%;
    /* width: 636px; */
    /* height: 84px; */
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    margin-left: 12px;
    color: rgb(0, 0, 0);
    /* flex: 0 0 auto; */
    order: 1;
}

.content_school_new2 {
    display: flex;
    margin-top: 12px;
}

.img_school_new2 {
    width: 40px;
    height: 40px;
    background: #D9D9D9;
    border-radius: 50%;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.school_new2 {
    width: 100%;
    /* width: 636px; */
    /* height: 84px; */
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    margin-left: 12px;
    color: rgb(0, 0, 0);
    /* flex: 0 0 auto; */
    order: 1;
}

.content_school_new3 {
    display: flex;
    margin-top: 12px;
}

.img_school_new3 {
    width: 40px;
    height: 40px;
    background: #D9D9D9;
    border-radius: 50%;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.school_new3 {
    width: 100%;
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    margin-left: 12px;
    color: rgb(0, 0, 0);
    /* flex: 0 0 auto; */
    order: 1;
}

.content_new_teacher {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    align-items: center;
}

.new_teacher {
    width: 50%;
}

.title_content_new_teacher {
    width: 100%;
    font-weight: 700;
    font-size: 28px;
    line-height: 150%;
    color: #1E1E1E;
    flex: none;
    order: 0;
    flex-grow: 0;
}

.content_teacher_new1 {
    display: flex;
    margin-top: 24px;
}

.img_teacher_new1 {
    width: 40px;
    height: 40px;
    background: #D9D9D9;
    border-radius: 50%;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.teacher_new1 {
    width: 100%;
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    color: #000000;
    margin-left: 12px;
    /* flex: none; */
    order: 1;
    flex-grow: 0;
}

.content_teacher_new2 {
    display: flex;
    margin-top: 12px;
}

.img_teacher_new2 {
    width: 40px;
    height: 40px;
    background: #D9D9D9;
    border-radius: 50%;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.teacher_new2 {
    width: 100%;
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    color: #000000;
    margin-left: 12px;
    /* flex: none; */
    order: 1;
    flex-grow: 0;
}

.content_teacher_new3 {
    display: flex;
    margin-top: 12px;
}

.img_teacher_new3 {
    width: 40px;
    height: 40px;
    background: #D9D9D9;
    border-radius: 50%;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.teacher_new3 {
    width: 100%;
    font-weight: 500;
    font-size: 18px;
    line-height: 28px;
    color: #000000;
    margin-left: 12px;
    /* flex: none; */
    order: 1;
    flex-grow: 0;
}

.img_content_new_teacher {
    width: 50%;
    height: 500px;
    border-radius: 24px;
    position: relative;
}

.img_content_new_teacher_bonus{
    width: 50%;
}

.img_content_new_teacher_bonus img{
    width: 100%;
}

.content_new_edu {
    display: flex;
    justify-content: space-between;
    margin-top: 120px;
    align-items: center;
}

.img_content_new_edu_bonus{
    display: none;
}

.content_school_edu1 {
    display: flex;
    margin-top: 24px;
}

.content_school_edu2 {
    display: flex;
    margin-top: 12px;
}

.content_school_edu3 {
    display: flex;
    margin-top: 12px;
}

.img_content_new_edu {
    width: 50%;
    height: 570px;
    border-radius: 24px;
    position: relative;
}

.img_content_new_edu img{
    width: 100%;
    height: 100%;
}

.new_edu {
    width: 50%;
}

.new_unitel {
    display: flex;
    justify-content: space-between;
    margin-top: 100px;
}

.title_content_new_unitel {
    width: 368px;
    height: 42px;
    font-weight: 700;
    font-size: 28px;
    line-height: 150%;
    /* identical to box height, or 42px */
    color: #1E1E1E;
}

.img_content_new_unitel {
    width: 700px;
    height: 500px;
    background: #D9D9D9;
    border-radius: 24px;
}

.content_ads {
    margin-top: 60px;
    width: 100%;
    height: 432px;
    background: #F2F2F2;
    border-radius: 24px;
    display: flex;
}

.content_new_ads {
    width: 700px;
    height: 432px;
    background: #D9D9D9;
    border-radius: 24px;
}

.content_title_ads {
    width: 403px;
    height: 84px;
    font-weight: 700;
    font-size: 35px;
    line-height: 150%;
    /* or 42px */
    color: #1E1E1E;
    margin-left: 216px;
    margin-top: 136px;
    /* Inside auto layout */
    flex: none;
    order: 0;
    flex-grow: 0;
}

.content_service {
    margin-left: 216px;
    margin-top: 30px;
}


/* end content_new_school */

/* start new_WorkHome */
.content_new_WorkHome{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 60px;
}

.new_WorkHome{
    width: 50%;
}

.img_content_WorkHome_bonus{
    width: 50%;
}

.img_content_WorkHome_bonus img{
    width: 100%;
}
/* end new_WorkHome */


/* start footer1 */
.footer-install_MB{
    display: none;
}

.footer1 {
    width: 100%;
    margin-top: 80px;
}

.footer-install {
    background: url("img/Asset\ 1@2x\ 1.png") center / cover no-repeat;
    height: 29vw;
    position: relative;
    margin-left: 10%;
    margin-right: 10%;
    border-radius: 24px;
}

.install-title {
    font-weight: 700;
    font-size: 28px;
    line-height: 150%;
    color: #FFFFFF;
    position: absolute;
    left: 59%;
    top: 27.8%;
    width: 35%;
}

.ggplay {
    position: absolute;
    left: 59%;
    top: 56.3%;
    width: 15.2%;
    height: 12%;
    background: url(./img/Google\ Play.png) center / cover no-repeat;
}

.appstore {
    position: absolute;
    left: 76%;
    top: 56.3%;
    width: 15.2%;
    height: 12%;
    background: url(./img/App\ Store.png) center / cover no-repeat;
}

.footer-install img {
    width: 100%;
}

.footer1_logo {
    width: 180px;
    height: 75px;
    background: url(./img/logo_laoedu.png) center / cover no-repeat;
}


.footer1_content {
    padding-top: 159px;
    display: flex;
    justify-content: space-between;
    background: white;
    position: relative;
}

.img-footer1 {
    position: absolute;
    width: 100%;
    height: 100%;
}

.img-footer2 {
    position: absolute;
    width: 100%;
    height: 100%;
}

.img-footerMB1{
    display: none;
}

.img-footerMB2{
    display: none;
}

.img-footer1 img{
    width: 100%;
    height: 100%;
}

.img-footer2 img {
    width: 100%;
    height: 100%;
}

.footer1_content_main{
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.footer1_main {
    font-weight: 500;
    font-size: 17px;
    line-height: 28px;
    /* or 165% */
    color: #1E1E1E;
    margin-top: 32px;
    padding-right: 99px;
}

.footer1_contact1 {
    padding: 165px 0px 0px 120px;
    flex: 2;
    width: 185px;
    z-index: 1;
}

.footer_contact2 {
    flex: 1;
    z-index: 1;
    margin-top: 190px;
    margin-right: 75px;
}

.footer_contact2_title {
    font-weight: 600;
    font-size: 20px;
    line-height: 24px;
    color: #000000;
}

.contact2 {
    font-weight: 500;
    font-size: 17px;
    line-height: 28px;
    /* identical to box height, or 165% */
    margin-top: 57px;
    color: #1E1E1E;
}

.contact3 {
    margin-top: 57px;
    line-height: 28px;
}

.footer_contact3 {
    flex: 1;
    z-index: 1;
    margin-top: 190px;
    margin-right: 15px;
}

.footer_contact3_title {
    font-weight: 600;
    font-size: 20px;
    line-height: 24px;
    color: #000000;
}

.contact_content{
    margin-bottom: 24px;
    font-size: 17px;
}

/* end footer1 */


/* start footer2 */

.footer2 {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
}

.footer2_content {
    font-weight: 600;
    font-size: 20px;
    line-height: 24px;
    color: #F26522;
    z-index: 1;
}


/* end footer2 */

@media screen and (max-width: 360px) {

    .footer_install_MB_product{
        position: absolute;
        top: 53.5% !important;
    }

    .footer-install_MB{
        height: 205.5vw !important;
    }

    .ggplayMB{
        width: 34.2% !important;
        height: 5% !important;
    }

    .appstoreMB{
        width: 34.2% !important;
        height: 5% !important;
    }
}

@media screen and (max-width: 543px) and (min-width: 495px) {
    .title_introduce_test{
        white-space: nowrap !important;
    }
}

@media screen and (max-width: 321px) and (min-width: 309px) {
    .title_introduce_test{
        white-space: nowrap !important;
    }
}

@media screen and (max-width: 801px) and (min-width: 500px) {
    .footer_install_MB_product{
        position: absolute;
        top: 28% !important;
    }

    .footer-install_MB{
        height: 140.5vw !important;
    }
}

@media screen and (max-width: 801px) {
    /* start navigation */
    .nav_all_option{
        display: none;
        position: absolute;
        background-color: #f9f9f9;
        min-width: 127px;
        box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.08);
        /* padding: 12px 16px; */
        padding: 8px 0;
        z-index: 1;
        top: 85px;
        right: 0;
        width: 100%;
    }

    .is-active .nav_all_option {
        display: block;
    }
    
    .nav_all{
        width: auto;
        display: flex;
     }
    
    .list_nav{
        display: flex;
        /* margin-top: 37px; */
    }
    
    /* .list_nav:hover .nav_clear{
        display: block;
    }

    .list_nav:hover .nav_add{
        display: none;
    }
    
    .list_nav:hover .nav_all_option{
        display: block;
    } */
    
    #nav{
        flex-direction: column;
    }
    
    .nav_options{
        line-height: 30px;
        margin-top: 10px;
    }
    
    #nav li a{
        margin-left: 10% !important;
        padding: 0;
        font-size: 16px;
    }
    
    /* .dropdown1:hover .dropdown-content {
        display: block;
    }

    .dropdown1.active .dropdown-content{
        display: block;
    } */

    .is-active .dropdown-content {
        display: block;
    }
    
    .dropdown1{
        display: block;
        margin-right: 15px;
        position: relative;
    }
    
    .dropdown2{
        display: none;
    }
    
    .text_drop{
        display: none;
    }

    .down_list{
        margin-left: 5px !important;
    }
    
    .drop_main{
        width: 80px;
        padding: 0;
    }

    .img_drop {
        margin-top: 5px;
    }
    /* end navigation */

    /* start content */
    .title_introduce_vn{
        display: none;
    }

    .title_introduce_vn2{
        display: block;
    }

    .test2_vn{
        top: 20%;
    }

    .test2_vn img{
        width: 100%;
    }

    .content{
        flex-direction: column;
    }

    .content_introduce{
        width: 100%;
    }

    .image_content{
        width: 90%;
        margin-left: 0;
        margin-top: 38px;
        height: auto;
    }

    .background_content{
        display: block;
        width: 100%;
    }

    .background_content img{
        width: 100%;
    }
    
    .test{
        display: none;
    }

    .but_download {
        width: 100%;
        height: 48px;
    }

    .but_download button {
        width: 100%;
    }
    .img-content1{
        display: none;
    }

    .img-content2{
        display: none;
    }
    /* end content */

/* start content_title */
    .title{
        font-size: 26px;
    }
    .content_title{
        flex-direction: column;
        margin-top: 83px;
    }

    .content_os{
        width: 100%;
        height: unset;
        margin-bottom: 24px;
    }

    .options{
        width: 70%;
        height: unset;
    }

    .content_option{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }

    .content_option_teacher{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }
    .content_option_student{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }   
/* end content title */

 /* start content_new_school */
.content_new_school{
    flex-direction: column;
    position: unset;
    margin-bottom: 0;
}

.img_content{
    display: none;
}

.img_content2{
    display: block;
    width: 125%;
    margin-top: 26px;
}

.img_content2 img{
    width: 100%;
}

.new_school{
    width: 100%;
    margin-left: 0;
}

.title_content_new{
    font-size: 26px;
}

/* end content_new_school */

/* start content_new_teacher */
.img_content_new_teacher{
    display: none;
}

.img_content_new_teacher_bonus{
    display: block;
    margin-top: 31px;
    width: 100%;
}

.img_content_new_teacher_bonus img{
    width: 100%;
}

.content_new_teacher{
    flex-direction: column;
    margin-top: 31px;
}

.new_teacher{
    width: 100%;
}

.title_content_new_teacher{
    font-size: 26px;
}


/* end content_new_teacher */

/* start new_edu */
.content_new_edu{
    flex-direction: column;
    margin-top: 34px;
}

.img_content_new_edu{
    display: none;
}

.img_content_new_edu_bonus{
    display: block;
    margin-top: 24px;
}

.img_content_new_edu_bonus img{
    width: 100%;
}

.new_edu{
    width: 100%;
}

/* end new_edu */

/* start new_WorkHome */
.content_new_WorkHome{
    flex-direction: column;
    margin-top: 48px;
}

.new_WorkHome{
    width: 100%;
}

.img_content_WorkHome_bonus{
    width: 100%;
    margin-top: 24px;
}

/* end new_WorkHome */
    
    /* start footer */
    .footer_product{
        margin: 0 16px;
    }

    .footer-install{
        display: none;
    }

    .footer_install_MB_product{
        position: absolute;
        top: 42.5%;
    }

    .install-titleMB{
        font-weight: 700;
        font-size: 28px;
        line-height: 150%;
        color: #FFFFFF;
        width: 100%;
        padding-top: 32px;
        padding-left: 13%;
        padding-right: 13%;
    }

    .footer-install_MB{
        display: block;
        background: url(img/Asset\ 1@2x\ 1x2.png) center / cover no-repeat;
        position: relative;
        border-radius: 24px;
        width: 100%;
        height: 170.5vw;
    }

    .ggplayMB{
        position: absolute;
        left: 13%;
        width: 35.2%;
        height: 6%;
        margin-top: 25px;
        background: url(img/Google\ Playx3.png) center / cover no-repeat;
    }

    .appstoreMB{
        position: absolute;
        right: 13%;
        width: 35.2%;
        height: 6%;
        margin-top: 25px;
        background: url(img/App\ Storex3.png) center / cover no-repeat;
    }

    .footer-install_MB img{
        width: 100%;
        height: 100%;
    }

    .footer1_logo{
        width: 180px;
        height: 75px;
    }

    .footer1_content_main{
        flex-direction: column;
        margin: 0 16px;
        justify-content: unset;
    }

    .footer1_contact1{
        padding: 0;
        flex: 2;
        width: auto;
        margin-top: 120px;
    }

    .footer1_main{
        padding-right: 0px;
        margin-top: 32px;
    }

    .contact2{
        margin-top: 24px;
    }
    .footer_contact2{
       margin-top: 32px;
    }

    .footer_contact3{
        margin-top: 32px;
    }

    .contact3{
        margin-top: 24px;
    }

    .img-footer1 {
        display: none;
    }
    
    .img-footer2 {
        display: none;
    }
    
   .img-footerMB1{
        display: block;
        position: absolute;
        width: 100%;
        height: 100%;
    }

   .img-footerMB2{
        display: block;
        position: absolute;
        width: 100%;
        height: 100%;
    }

    .img-footerMB1 img{
        width: 100%;
        height: 100%;
    }

    .img-footerMB2 img{
        width: 100%;
        height: 100%;
    }

    .footer2{
        text-align: center;
    }

    /* end footer */
}


@media screen and (max-width: 817px) and (min-width: 701px){
    .contact3 {
        margin-top: 34px;
    }
}

@media screen and (max-width: 993px) and (min-width: 801px) {
   /* start navigation */
   .nav_all_option{
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 127px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.08);
    /* padding: 12px 16px; */
    padding: 8px 0;
    z-index: 1;
    top: 85px;
    right: 0;
    width: 100%;
   }

    .is-active .nav_all_option {
     display: block;
    }

    .nav_all{
        width: auto;
        display: flex;
    }

    .list_nav{
        display: flex;
        /* margin-top: 37px; */
    }

    /* .list_nav:hover .nav_clear{
        display: block;
    }

    .list_nav:hover .nav_add{
        display: none;
    }

    .list_nav:hover .nav_all_option{
        display: block;
    } */

    #nav{
        flex-direction: column;
    }

    .nav_options{
        line-height: 30px;
        margin-top: 10px;
    }

    #nav li a{
        margin-left: 10% !important;
        padding: 0;
        font-size: 16px;
    }

    /* .dropdown1:hover .dropdown-content {
        display: block;
    }

    .dropdown1.active .dropdown-content{
        display: block;
    } */

    .is-active .dropdown-content {
        display: block;
    }

    .dropdown1{
        display: block;
        margin-right: 15px;
        position: relative;
    }

    .dropdown2{
        display: none;
    }

    .text_drop{
        display: none;
    }

    .down_list{
        margin-left: 5px !important;
    }

    .drop_main{
        width: 80px;
        padding: 0;
    }

    .img_drop {
        margin-top: 5px;
    }
    /* end navigation */
 
    /* start content */
    .title_introduce_vn{
        display: none;
    }

    .title_introduce_vn2{
        display: block;
    }

    .test2_vn{
        top: 20%;
    }

    .test2_vn img{
        width: 100%;
    }

    .content{
        flex-direction: column;
    }

    .content_introduce{
        width: 100%;
    }

    .image_content{
        width: 100%;
        margin-left: 0;
        margin-top: 44px;
    }  
    /* end content */

/* start content_new_school */
 .content_new_school{
    flex-direction: column;
    position: unset;
    margin-bottom: 0;
}

.img_content{
    display: none;
}

.img_content2{
    display: block;
    width: 125%;
    margin-top: 26px;
}

.img_content2 img{
    width: 100%;
}

.new_school{
    width: 100%;
}

.title_content_new{
    font-size: 26px;
}

/* end content_new_school */

/* start content_new_teacher */
.img_content_new_teacher{
    display: none;
}

.img_content_new_teacher_bonus{
    display: block;
    margin-top: 31px;
    width: 100%;
}

.img_content_new_teacher_bonus img{
    width: 100%;
}

.content_new_teacher{
    flex-direction: column;
    margin-top: 31px;
}

.content_teacher_new1{
    margin-top: 24px;
}

.new_teacher{
    width: 100%;
}


.title_content_new_teacher{
    font-size: 26px;
}

/* end content_new_teacher */

/* start new_edu */
.content_new_edu{
    flex-direction: column;
    margin-top: 34px;
}

.img_content_new_edu{
    display: none;
}

.img_content_new_edu_bonus{
    display: block;
    margin-top: 24px;
}

.img_content_new_edu_bonus img{
    width: 100%;
}

.new_edu{
    width: 100%;
}

/* end new_edu */

/* start new_WorkHome */
.content_new_WorkHome{
    flex-direction: column;
    margin-top: 48px;
}

.new_WorkHome{
    width: 100%;
}

.img_content_WorkHome_bonus{
    width: 100%;
    margin-top: 24px;
}

/* end new_WorkHome */

    /* start content_title */
    .title{
        font-size: 26px;
    }

    .content_title{
        flex-direction: column;
        margin-top: 150px;
    }

    .content_os{
        width: 100%;
        height: unset;
        margin-bottom: 24px;
    }

    .options{
        width: 70%;
        height: unset;
    }

    .content_option{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }

    .content_option_teacher{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }
    .content_option_student{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }   
/* end content title */


/* start footer */
    .footer_product{
        margin: 0 16px;
    }

    .footer-install{
        display: none;
    }

    .footer_install_MB_product{
        position: absolute;
        top: 20.5%;
    }

    .install-titleMB{
        font-weight: 700;
        font-size: 28px;
        line-height: 150%;
        color: #FFFFFF;
        width: 100%;
        padding-top: 32px;
        padding-left: 20%;
        padding-right: 20%;
    }

    .footer-install_MB{
        display: block;
        background: url(img/Asset\ 1@2x\ 1x2.png) center / cover no-repeat;
        position: relative;
        border-radius: 24px;
        width: 100%;
        height: 129.5vw;
    }

    .ggplayMB{
        position: absolute;
        left: 20%;
        width: 27.2%;
        height: 6%;
        margin-top: 25px;
        background: url(img/Google\ Playx3.png) center / cover no-repeat;
    }

    .appstoreMB{
        position: absolute;
        right: 20%;
        width: 27.2%;
        height: 6%;
        margin-top: 25px;
        background: url(img/App\ Storex3.png) center / cover no-repeat;
    }

    .footer-install_MB img{
        width: 100%;
    }

    .eng{
        padding-top: 25px;
    }

    .img-footer1 {
        width: 100%;
        height: 100%;
    }
    
    .img-footer2 {
        width: 100%;
        height: 100%;
    }
    
    .img-footer2 img {
        width: 100%;
        height: 100%;
    }

    .img-footer1 img {
        width: 100%;
        height: 100%;
    }
/* end footer */

}

@media screen and (max-width: 1264px) and (min-width: 993px){
    .install-title{
        top: 13.5%;
    }
}

@media screen and (max-width: 1301px) and (min-width: 993px){
    .image_content{
        padding-top: 75px;
    }

    /* start content_title */
    .content_title{
        flex-direction: column;
        margin-top: 83px;
    }

    .content_os{
        width: 100%;
        height: unset;
        margin-bottom: 24px;
    }

    .options{
        width: 70%;
        height: unset;
    }

    .content_option{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }

    .content_option_teacher{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }
    .content_option_student{
        width: 100%;
        height: unset;
        line-height: 24px;
        margin-left: unset;
        padding-left: 68px;
        padding-right: 23px;
        margin-bottom: 20px;
    }   
/* end content title */

    .img-content1 {
        right: 15px;
        top: 10%;
    }

    .contact2{
        margin-top: 57px;
    }

    .img-footer1 {
        width: 100%;
        height: 100%;
    }
    
    .img-footer2 {
        width: 100%;
        height: 100%;
    }
    
    .img-footer2 img {
        width: 100%;
        height: 100%;
    }

    .img-footer1 img {
        width: 100%;
        height: 100%;
    }
    
}

@media screen and (max-width: 1371px) and (min-width: 1255px){
    .title_introduce_test{
        white-space: nowrap !important;
    }
}

@media screen and (max-width: 1601px) and (min-width: 1301px){

    .img-content1 {
        right: 15px;
        top: 10%;
    }

    .contact2{
        margin-top: 57px;
    }

    .img-footer1 {
        width: 100%;
        height: 100%;
    }
    
    .img-footer2 {
        width: 100%;
        height: 100%;
    }
    
    .img-footer2 img {
        width: 100%;
        height: 100%;
    }

    .img-footer1 img {
        width: 100%;
        height: 100%;
    }
}