@font-face {
    font-family: 'OpenSans';
    src: url('../update2020/font/OpenSans-Regular.eot'); /* IE9 Compat Modes */
    src: url('../update2020/font/OpenSans-Regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
    url('../update2020/font/OpenSans-Regular.woff2') format('woff2'), /* Modern Browsers */
    url('../update2020/font/OpenSans-Regular.woff') format('woff'), /* Modern Browsers */
    url('../update2020/font/OpenSans-Regular.ttf') format('truetype'), /* Safari, Android, iOS */
    url('../update2020/font/OpenSans-Regular.svg') format('svg'); /* Legacy iOS */
    font-weight: normal;
    font-style: normal;
}
@font-face {
    font-family: 'OpenSansBold';
    src: url('../update2020/font/OpenSans-Bold.eot'); /* IE9 Compat Modes */
    src: url('../update2020/font/OpenSans-Bold.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
    url('../update2020/font/OpenSans-Bold.woff2') format('woff2'), /* Modern Browsers */
    url('../update2020/font/OpenSans-Bold.woff') format('woff'), /* Modern Browsers */
    url('../update2020/font/OpenSans-Bold.ttf') format('truetype'), /* Safari, Android, iOS */
    url('../update2020/font/OpenSans-Bold.svg') format('svg'); /* Legacy iOS */
    font-weight: normal;
    font-style: normal;
}
@font-face {
    font-family: 'OpenSansExBold';
    src: url('../fonts/OpenSans-ExtraBold.eot'); /* IE9 Compat Modes */
    src: url('../fonts/OpenSans-ExtraBold.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
    url('../fonts/OpenSans-ExtraBold.woff2') format('woff2'), /* Modern Browsers */
    url('../fonts/OpenSans-ExtraBold.woff') format('woff'), /* Modern Browsers */
    url('../fonts/OpenSans-ExtraBold.ttf') format('truetype'); /* Safari, Android, iOS */
    font-weight: bold;
}
body {font-family: OpenSans, Tahoma, Helvetica, Sans-serif;line-height:1.5;margin:0;padding:0;font-size:14px;background:#f4f2ec;color:#262626}
.font-opensans-b {
    font-family: 'OpenSansBold';
    font-weight: normal;
}
.font-opensans-exb {
    font-family: 'OpenSansExBold';
    font-weight: normal;
}
.fl{float: left}
.fr{float:right;}
a {
    text-decoration: none;
    outline: none;
}
.clear{clear: both;}


/* POPUP */
#overlayA{
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
}
.fixedWrap{
    width: 100%;
    height: 100%;
    position: absolute;
    z-index:401;
    display: flex;
    justify-content: center;
    align-items: center;
}
#box-content b, #box-content strong {
    font-family: 'OpenSansBold'; font-weight: normal;
}
.fixedWrap .thePopup{
    width: calc(100% - 24px);
    background: #fff;
    border-radius: 7px;
    padding: 10px;
}
ul.list_style li {
    background: unset;
    padding-left: 0;
}
ul.list_style li:before {
    background: url(/themes/images/icon.png) no-repeat 0 -136px;
    content: '';
    margin-right: 5px;
    width: 10px;
    height: 10px;
    display: inline-block;
}
.fixedWrap .titlePop{
    position: relative;
    font-size: 18px;
}
.fixedWrap .titlePop,.fixedWrap .thePopup .intro,.fixedWrap .thePopup .content{
    margin:0 0 11px 0;
    text-align: center;

}
.fixedWrap .closeBtnPopUp{
    position: absolute;
    right: 2px;
    top: 5px;
    width: 12px;
    height: 12px;
    background:url(../update2020/img/closeIcon.png) no-repeat center/100%;
}
.fixedWrap .thePopup .content{
    width: 100%;
    height: 158px;
    background: #e4e4ec;
    border-radius: 7px;
    resize: vertical;
    padding: 10px 15px;
    box-sizing: border-box;
    text-align: left;
    outline: none;
    border: none;
    display: block;
    font-family: OpenSans,sans-serif;
}
.fixedWrap .groupBtnPopUp{
    text-align: center;
}
.fixedWrap .groupBtnPopUp .btnPopUp{
    padding: 9px 22px;
    border-radius: 50px;
    margin:0 5px;
    color:#fff;
    display: inline-block;
}
.primaryColor{
    background: #2888e1;
}
.nomalColor{
    background: #999999;
}
.colorOrange{
    color:#df7100;
    font-weight:bold;
}


/* phần hết phần pop up */
.container{
    width: 100%;
    padding: 0 12px;
    margin: 0 auto;
}
#wrapper {
    margin: 0;
    padding: 0;
}
#menu-navi.header {
    height: auto;
    /*padding: 0px 10px;*/
    background-image:linear-gradient(to right,#2988e1,#8a6cbd);
}
#menu-navi ul.nav li a {
    padding: 11px 11px 9px 11px;
}
#menu-navi .clearfix:after {
    visibility: hidden;
    display: block;
    font-size: 0;
    content: " ";
    clear: both;
    height: 0;
}

#menu-navi a.btn_navbar {
    background: url(../images/icon.png) no-repeat 3px 6px #1c76c9;
    display: inline-block;
    height: 27px;
    width: 30px;
    float: left;
    border: 1px solid #62a9ea;
    border-radius: 2px;
}
#menu-navi .categories {
    background: #fff;
    position: absolute;
    top: 43px;
    margin: 0;
    left: 0;
    padding-bottom: 0;
    box-shadow: 0 2px 3px #aaa;
    z-index: 999;
    width: calc(100% - 24px);
    box-sizing: border-box;
    padding: 0 10px;
    left: 12px;
    top: 38px;
    border-radius: 4px;
}
/*#menu-navi ul.nav, ul.list, ul {*/
/*list-style: none;*/
/*margin: 0;*/
/*padding: 0;*/
/*}*/
#menu-navi ul.nav-hozital li {
    float: left;
    width: 31%;
    margin-right: 3%;
    border-bottom: 1px dotted #e5e5e5;
}
#menu-navi ul.nav-hozital li a {
    display: block;
    color: #000;
    padding: 8px 0;
}
.n-arrow-hover3 {
    position: absolute;
    bottom: -11px;
}
ul.sub-nav2 {
    top:40px !important;
}
.mainBody {
    margin: 0 auto;
    width: 100%;
}
/* tungld */
#menu-navi .main .menu{
    display: flex;
    align-items: center;
}
#menu-navi .main .logo{
    width: 88px;
    display: block;
}
#menu-navi .wrapIcon{
    background:#5e5489;
    border-radius: 5px;
    display: inline-block;
    line-height: 0;
    padding: 3px;
}
#menu-navi .searchBox {
    background: #1972c5;
    border-radius: 20px;
    width: 170px;
}
#menu-navi .searchBox input {
    width: 135px;
    border: none;
    background: transparent;
    outline: none;
    color: #fff;
    height: 28px;
    box-sizing: border-box;
    padding: 5px 5px 5px 8px;
}
ul.nav {
    margin-left: 140px;
}
#menu-navi .searchBox input {
    width:calc(100% - 26px)
}
#menu-navi .searchBox .btnSeach {
    margin: 0px 0 -8px 0;
    cursor: pointer;
}
#menu-navi .searchBox {
    margin-top: 5px;
    margin-right: 5px;
}
#menu-navi .searchBox input::placeholder{
    color:#68b6ff;
}
#menu-navi .searchBox .btnSeach{
    background:url('../update2020/img/iconSearch.png') no-repeat center/100%;
    display: block;
    width: 18px;
    height: 18px;
}
#menu-navi .main .logo,#menu-navi .searchBox,#menu-navi .wrapIcon{
    margin-left:8px;
}
.padth{
    border-bottom: 1px solid #e1e1e1;
    padding: 10px 0;
    margin-bottom: 12px;
}
.padth .tagLink{
    color: #262626;
    padding-left: 12px;
    background: url(../update2020/img/FormaRight.png) no-repeat left 4px;
    display: inline-block;
    padding-right: 9px;
}
.padth .tagLink:first-child{
    margin-left:0;
}
.debai{
    margin-bottom: 12px;
}
.debai .title,.blockContent .title{
    font-size: 15px;
    font-family: OpenSansBold,sans-serif;
}
.debai .title{
    font-size: 18px;
    color:#df7100;
    margin: 0 0 12px 0;
}
.debai .intro{
    margin: 0;
}
.blockContent .title{
    margin:0 0 6px 0;
}
.blockContent {
    margin-bottom: 12px;
}
.blockContent .method{
    margin: 0;
}
.blockContent .listQuestions .question{
    padding: 5px 12px;
    border: 1px solid #2888e1;
    border-radius: 50px;
    color:#2888e1;
    display: inline-block;
    margin-bottom: 5px;
}
.blockContent .listQuestions .active{
    background: #2888e1;
    color:#fff
}
.author{
    font-family: OpenSansBold,sans-serif;
    display: block;
    text-align: right;
    padding:5px 0;
    margin: 0;
}
.left{
    background: #fff;
    margin-top:20px;
}
.top-title {
    border-bottom: 1px solid #e0e0e0;
    padding: 7px 15px 7px 15px;
    font-size: 16px;
}
.font-16 {
    font-size: 16px;
}
.grade-page .subject-item h2{
    font-size: 16px;
    text-align: left;
    display: inline-block;
    margin: 5px 10px;
}
.homepage-new{
    position: relative;
}
.grade-page .subject-item:nth-of-type(1) h2{  color: #59368c;  }  .grade-page .subject-item:nth-of-type(2) h2{  color: #d93928;}.grade-page .subject-item:nth-of-type(9) h2:after{background: #f60;}
.grade-page .subject-item:nth-of-type(3) h2{  color: #a03f15;}.grade-page .subject-item:nth-of-type(4) h2{color: #1e34a3;}.grade-page .subject-item:nth-of-type(5) h2{ color: #005eb6;}
.grade-page .subject-item:nth-of-type(6) h2{ color: #108199;} .grade-page .subject-item:nth-of-type(7) h2{ color: #6fa300;}.grade-page .subject-item:nth-of-type(8) h2{color: #cf7b04;  }
.grade-page .subject-item:nth-of-type(10) h2{color: #55362e;} .grade-page .subject-item:nth-of-type(11) h2{color: #b1890e;}.grade-page .subject-item:nth-of-type(12) h2{color: #44775b;}
.grade-page .subject-item:nth-of-type(1) h2:after{  background: #59368c;  }  .grade-page .subject-item:nth-of-type(2) h2:after{  background: #d93928;  }
.grade-page .subject-item:nth-of-type(3) h2:after{background: #a03f15;}.grade-page .subject-item:nth-of-type(4) h2:after{background: #1e34a3;}.grade-page .subject-item:nth-of-type(5) h2:after{background: #005eb6;}
.grade-page .subject-item:nth-of-type(6) h2:after{background: #108199;}.grade-page .subject-item:nth-of-type(7) h2:after{background: #6fa300;}.grade-page .subject-item:nth-of-type(8) h2:after{background: #cf7b04;}
.grade-page .subject-item:nth-of-type(10) h2:after{background: #55362e;}.grade-page .subject-item:nth-of-type(11) h2:after{background: #b1890e;}.grade-page .subject-item:nth-of-type(12) h2:after{background: #44775b;}
.descript-categories, .n-rate {
    padding: 0 15px;
}
.grade-page .subject-item h2:after {
    content: "";
    display: block;
    width: 50%;
    margin-top: 5px;
    height: 3px;
    border-radius: 16px;
}
.title-event-parent a:after{
    content: "";
    display: block;
    width: 50%;
    border-bottom: 3px solid;
    margin-top: 5px;
}
.title-event-parent a:hover {
    text-decoration: none   ;
}
.subject-item .n-link-exercise,.subject-item .n-list-exercise, .subject-item .n-col-exercise, .subject-item ul li {
    width: 100%;
}
.subject-item ul li {
    margin:3px 0;
}
.subject-item {
    padding-left: 10px;
    margin-bottom: 30px;
}
.subject-item ul li a:hover {
    text-decoration: none;
    color: #2888e1;
    background: #e4e4ec;
}
.subject-item.no-bg ul li a:hover {
    text-decoration: none;
    color: #2888e1;
    background: transparent;
}
.subject-item ul li a {
    border-radius: 12px;
    padding: 6px 10px;
    display: inline-block;
    border-bottom: none;
    font-size: 16px;
    color: #262626;
    font-family: 'OpenSansBold'; font-weight: normal;
}
.list-posts li a:hover {
    text-decoration: none;
}
.detail_new, .n-left-menu ul li a {
    color: #000;
}
.list-posts li {
    margin:3px 0;
}
.list-posts li a {
    padding: 6px 10px;
    font-size: 16px;
    position: relative;
}
.list-posts li a b {
    margin-left: 13px;
    display: block;
}
.list-posts li a img {
    position: absolute;
    top: 14px;
}
ul.nav li a {
    font-size: 13px;
}
ul.nav ul.sub-nav2 li a {
    font-size: 14px;
    font-family: Arial,Tahoma,Helvetica,Sans-serif;
    color: #17255b;
}
.box-subject ul.sub-nav2-2col li{
    position: relative;
}
.box-subject ul.sub-nav2-2col li img{
    position: absolute;
    top: 17px;
    right: -8px;
    display: none;
}
.box-subject ul.sub-nav2-2col li.active img{display: block;}
#menu-navi ul.sub-nav2-2col li a{
    margin-bottom: 5px;
    padding: 5px 10px 4px 10px;
}
.box-subject ul.sub-nav2-2col li.active a{
    background: #fff!important;
    color: #f78302!important;
}
.box-subject{vertical-align: top;padding: 0;}
.box-subject li a{
    text-transform: uppercase !important;
    font-weight: bold !important;
    padding: 13px 10px 8px 15px !important;
    background: none !important;
    border-bottom: 1px solid #e0e0e0  !important;
    border-radius: unset  !important;
    margin-bottom: 0 !important;
    font-size: 14px !important;
}
.box-subject ul.sub-nav2-2col {
    width: 165px;
    overflow: unset !important;
}
.box-list {vertical-align: top !important;overflow: unset !important;}
.box-subject li.sub-j a:hover,.box-subject ul.nav ul.sub-nav2 li.sub-j a:hover{
    color: #f78302 !important;
}
.box-subject ul.sub-nav2-2col li.active a:hover, .box-subject ul.sub-nav2-2col li a:hover{
    color: #f78302 !important;
}

#footer {
    background: #292c37;
    font-family: Arial,Tahoma,Helvetica,Sans-serif;
}
#event_2_columns .list-posts li, #event_2_columns .subject-item li {
    display: inline-block;
    vertical-align: top;
    width: 48%;
}
.subject-item li a span {
    margin-left: 13px;
    display: block;
}
.subject-item li {position: relative}
.subject-item li a img {
    position: absolute;
    top: 14px;
}
#select-book-cat {
    margin: 20px auto 40px auto;
    display: block;
    width: 300px;
    font-weight: bold;
    font-size: 16px;
    border-radius: 30px;
    position: relative;
}
#select-book-cat ul{
    transition: height0.3s ease-out;
    opacity: 0;
    overflow: hidden;
    position: absolute;
    background: #fff;
    top: 36px;
    width: 298px;
    height: 0;
    z-index: 1;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    box-shadow:6px 9px 9px 1px #ccc;
    font-weight: normal;
}
#select-book-cat a, #select-book-cat a:hover{
    text-decoration: none;
    color: #262626;
}
.block-grade {
    border-bottom: 1px solid #ccc;
    padding-bottom: 20px !important;
}
#select-book-cat ul li:last-child a{border-bottom: none;}
#select-book-cat a *{vertical-align: middle;}
#select-book-cat ul li a {
    display: block;
    cursor: pointer;
    border-bottom: 1px solid #e0e0e0;
    padding: 10px 5px 7px 10px;
}
#select-book-cat ul li a:hover{
    background:#e5f1ff;
}
#select-book-cat ul.boook-kat li a img{
    display: inline-block;
    margin-right: 5px;
}
#select-book-cat.active >span{
    border-radius: unset !important;
    border-top-left-radius: 8px !important;
    border-top-right-radius: 8px !important;
    border: 1px solid #3087e1 !important;
}
#select-book-cat.active ul{
    border: 1px solid #3087e1;
    height: auto;
    transition: height0.3s ease-in;
    opacity: 1;
    border-top: unset;
}
.box_slide {
    padding: 5px;
    border-bottom: 20px solid #f4f2ec;
}
.block-grade a {
    text-decoration: none !important;
    cursor: pointer;
    width: 100px;
    padding: 4px 0;
    border: 1px solid #e0e0e0;
    border-radius: 30px;
    display: inline-block;
    margin: 6px 15px 6px 0;
    text-align: center;
    color: #262626;
    font-size: 16px;
}
.block-grade a:hover, .block-grade a.active {
    background: #3087e1;
    color: #fff;
    font-weight: bold;
}
.subject-item li.book-cat a span {
    margin-left: 40px;
}
.subject-item li.book-cat a img{top: 3px; width: 30px;}
.homepage-new {margin-top: 15px;    min-height: 300px;}
.homepage-new > * {
    padding: 0 20px;
}
.box_slide {
    padding: 20px;
}
.slide {
    width: 395px;
}
.box_hot {
    margin-top: -8px;
}
.homepage-new .grade-page .subject-item{
    display: inline-block;
    width: 49%;
    padding-left: 0;
    vertical-align: top;
}
.articles-hot {
    border-top: 20px solid #f4f2ec;
    padding-top: 15px;
}
.articles-hot .hostest {
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
    margin-bottom: 15px;
}
.articles-hot .hostest a:hover, .articles-hot .hostest:hover a {
    text-decoration: none;
    color: #2d7ed3 !important;
}
.articles-hot .hostest .rightt {
    width: calc(100% - 225px);
    font-size: 16px;
    margin-left: 15px;
    vertical-align: top;
    display: inline-block;
}


/*Popup confirm notify*/
.popup-confirm-notify {
    position: fixed;
    top: 0;
    left: 50%;
    margin-left: -240px;
    z-index: 9999;
    width: 479px;
    background: #fff;
    box-shadow: 3px 3px 7px 3px #0000009c;
    padding: 15px 20px;
    display: none;
}
.popup-confirm-notify .info {
    display: inline-block;
    display: inline-block;
    width: calc(100% - 90px);
    margin-left: 15px;
}
.popup-confirm-notify .info p {margin-bottom: 0;}
.popup-confirm-notify .info a {
    text-decoration:none;background: #3087e1;width: 100px;display: inline-block;text-align: center;color: #fff;padding: 3px 0;border-radius: 4px;
    cursor: pointer;
    border: 1px solid #0068c7;
}
.popup-confirm-notify .info a.cancel {
    border: 1px solid #b7b7b7;
    margin-left: 10px;
    background: #ccc;
    color: #333;
}
.popup-confirm-notify .info a:hover {
    opacity: 0.8;
}
.mark {
    position: fixed;
    background: #000;
    display: none;
    width: 100%;
    height: 100%;
    top: 0;
    opacity: 0.7;
    z-index: 999;
}

/*
CSS Copy từ top_menu_mix.php
*/
.td-pop-opacity {
    bottom: 0;
    top: 40px;
    /*display: block !important;*/
    z-index: 1;
}
ul.nav {
    z-index: 99;
}
.box-list a:hover {
    background: transparent !important;
    color: #2888e1 !important;
}
ul.sub-nav2 {
    right: 30px;
    left: 30px;
    top: 50px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 10px;
    padding-right: 10px;
}
.box-list-father .box-list:nth-child(2) ul.sub-nav2-2col {
    width: 100%;
    min-width: 300px;
}
.box-subject ul.sub-nav2-2col {width: 200px;}
ul.sub-nav2-2col {width: 235px;}

/**
CSS Menu Mới
 */
#menu-navi {
    position: relative;
    z-index: 1000;
}
#menu-navi .main {
    width: 1200px !important;
}

#menu-navi ul.nav {
    position: static !important;
}
.subchild li.itemsub {
    background-repeat: no-repeat !important;
    background-size: 24px 24px !important;
}
.subchild .content-sub-nav2 {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin: 0 auto;
    width: 1200px;
    max-width: 100%;
}
.subchild li.itemsub {
    box-sizing: border-box;
    padding: 0 0 10px 24px !important;
    width: calc(1/4*100% - (3/4)*12px);
    margin: 0 12px 0 0;
}

.subchild li.itemsub:nth-child(4n) {
    margin-right: 0;
}

#menu-navi ul.nav .itemsub > a {
    color: #3185DE !important;
    font-size: 18px !important;
    font-weight: bold !important;
    text-transform: uppercase !important;
    text-decoration: none;
    padding: 0 0 6px 10px !important;
}

#menu-navi ul.nav .itemsub > a > span {
    background: linear-gradient(to bottom, #866DBE 0%, #3185DE 100%);
    background: -webkit-linear-gradient(to bottom, #866DBE 0%, #3185DE 100%);
    background: -moz-linear-gradient(to bottom, #866DBE 0%, #3185DE 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

#menu-navi ul.nav .itemsub > a:hover {
    background-color: white !important;
    font-size: 18px !important;
    font-weight: bold !important;
    text-transform: uppercase !important;
    border-radius: 0;
}
#menu-navi ul.nav .itemsub li {

    display: list-item;
    width: 100%;
    box-sizing: border-box;
}
#menu-navi ul.nav .itemsub li a {
    padding: 4px 0 4px 10px !important;
    text-decoration: none;
    color: #17255b !important;
    font-size: 16px;
}
#menu-navi ul.nav .itemsub li a:hover {
    background-color: #f1ebff !important;
    color: #8168b9 !important;
    border-radius: 0;
    font-weight: bold;
}
/*
End CSS CCopy từ top_menu_mix.php
*/
@media screen and (min-width: 1240px) and (max-width: 2100px){

    #bodyContent .container {
        max-width: 100% !important;
        width: calc(100% - 24px) !important;
    }

    /*comment page*/
    .main {
        width: calc(100% - 60px);
        margin-left: auto;
        margin-right: auto;
    }

    /* cột bên tay trái */
    .main .left {
        width: calc(100% - 320px);
    }

    /*homepage*/
    .home-page .main {
        /* do nothing */
    }

    /*box_slide này xuất hiện ở trang chủ homepage ở trên cùng phần nội dung*/
    .box_slide .box_hot {
        width: calc(100% - 460px);
    }

    .box_hot ul.list li a {
        width: 100%;
        max-width: 100%;
        text-overflow: ellipsis;
    }

    /* Page lớp 12 Box LỜI GIẢI VÀ BÀI SOẠN VĂN LỚP 12 ĐANG ĐƯỢC QUAN TÂM */
    .categories-page .n-link-exercise {
        width: 100%;
    }

    .categories-page .n-list-exercise {
        width: 100%;
    }

    .categories-page .n-link-exercise .n-col-exercise {
        width: 49% !important;
    }

    .categories-page .n-list-exercise ul li {
        width: 100%;
    }

    /*Trang chi tiết bài viết*/
    .detail-page .main {
        width: calc(100% - 60px);
        max-width: 100vw;
        margin-left: auto;
        margin-right: auto;
    }

    .detail-page .left.left-3col {
        width: calc(100% - 320px);
    }

    /* page danh mục
    http://lgh.test/vat-ly-lop-12-c63.html
    */

    /* */
    .left .n-form-sub {
        width: 100%;
    }
    /* Page event
    http://lgh.test/bai-1-dao-dong-dieu-hoa-e734.html */
    .n-form-exercise {
        width: calc(100% - 28px) !important;
    }

    .n-form-exercise .n-btn-select {
        width: 100% !important;
    }

    .n-form-exercise .n-exercise {
        width: 100% !important;
    }


    /* page chi tiết dạng câu hỏi */
    .Choose-fast {
        width: 100%;
    }

    .Choose-fast.fix {
        width: calc(100% - 670px);
    }

    .box-question {
        width: calc(100% - 40px) !important;
    }

    /* trang lớp */
    .grade-page .subject-item {
        float: left;
        /*display: inline-block;*/
        width: calc(50% - 10px);
        box-sizing: border-box;
    }

    .grade-page::after {
        display: block;
        content: "";
        clear: both;
    }

}


@media screen and (min-width: 1400px) {
    ul.sub-nav2 {
        left: 100px;
        right: 100px;
    }

}

@media screen and (min-width: 1365px) {

    /*.main {
        width: 1310px;
        margin-left: auto;
        margin-right: auto;
    }*/


}

/*
@media screen and (min-width: 1365px) {

    .detail-page .main {
        width: 1310px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media screen and (min-width: 1600px) {

    .detail-page .main {
        width: 1400px;
        margin-left: auto;
        margin-right: auto;
    }
}*/

@media screen and (min-width: 2100px) {

    .main {
        width: 1920px;
        margin-left: auto;
        margin-right: auto;
    }

    .box_hot ul.list li a {
        width: 100%;
        max-width: 100%;
        text-overflow: ellipsis;
    }

    /* trang lớp */
    .grade-page .subject-item {
        float: left;
        /*display: inline-block;*/
        width: calc(50% - 10px);
        box-sizing: border-box;
    }

    .grade-page::after {
        display: block;
        content: "";
        clear: both;
    }

}
/* add zoom icon */
.detail-page .zoom_image-container {
    position: relative; left: 0; top: 0;
}
.detail-page .zoom_image {
    position: relative;
    top: 0;
    left: 0;
}
.detail-page .zoom_image-icon {
    width: 30px;
    height: auto;
    position: absolute;
    top: 20px;
}

.detail-page img.zoom_image {
    max-width: 100% !important;
}

/* update event-articles-wrap-2-cols */
.event-articles-wrap-2-cols {
    display: flex;
    flex-flow: row wrap;
}

#event_1_columns .event-articles-wrap-2-cols > ul {
    margin-left: -5px; width: 100%;box-sizing: border-box;
}

#event_2_columns .event-articles-wrap-2-cols > ul {
    margin-left: -5px; width: 50%;box-sizing: border-box;
}

#event_2_columns .subject-item .event-articles-wrap-2-cols > ul li {
    display: block; width: 100%;
}

#event_2_columns ul.width50or100 {
    width: 48%;
}
#event_2_columns ul.width50or100 > li {
    width: 100% !important;
}

#event_1_columns ul.width50or100 {
    width: 100%;
}

.wrap-width50or100 {
    display: flex;
    flex-flow: row wrap;
    width: 100%;
    box-sizing: border-box;
}

/* end update event-articles-wrap-2-cols */
.detail-page #readmore-bottom-article {
    color: #3185de; font-size: 16px; width: 120px; margin: 0 auto;
}
.detail-page #readmore-bottom-article:hover {
    text-decoration: underline;
    cursor: pointer;
}
.hidden {
    display: none;
}

.intro-bookcat-2022 {
    text-align: center; padding-bottom: 10px;
}
.intro-bookcat-2022 a {
    text-transform: none !important;
    color: #2988e1 !important;
    font-size: 20px !important;
    font-weight: normal !important;
}
.intro-bookcat-2022 a:hover {
    background: none !important;
    text-decoration: underline !important;
    font-weight: normal !important;
}

.class-intro-bookcat {
    display: flex;
    justify-content: space-around;
    clear: both;
}

.class-intro-bookcat .intro-bookcat-box {
    width: 200px;
    background-color: #0093E9;
    background-image: linear-gradient(160deg, #2B88E1 0%, #896CBD 100%);
    padding: 10px;
    border-radius: 24px;
}

.intro-bookcat-box .intro-bookcat-title {
    text-align: center;
}
.intro-bookcat-box .intro-bookcat-title p {
    color: #fff;
    font-size: 16px;
}
.intro-bookcat-box .intro-bookcat-image {
    text-align: center;
}

/* quizlet */
.wrap-lgh-quizlet {
    width: 100%;
    display: flex;
    background-color: #ffffff;
    border-radius: 24px;
    justify-content: space-between;
}

.lgh-quizlet-menu {
    width: 184px;
    box-sizing: border-box;
}

.lgh-quizlet-menu ul {
    list-style: none;
}

.lgh-quizlet-menu li {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: #262626;
    font-size: 16px;
    width: 100%;
    box-sizing: border-box;
    text-decoration: none;
    cursor: pointer;
    background-color: #ffffff;
    border-radius: 6px;
    border: 1px solid #d6e7f8;
    margin-bottom: 20px;
}

.lgh-quizlet-menu li:hover {
    background-color: #d6e7f8;
    font-weight: bold;
}

.lgh-quizlet-menu li.active {
    background-color: #d6e7f8;
    font-weight: bold;
}

.lgh-quizlet-menu li img {
    margin-right: 14px;
}

.lgh-quizlet-content {
    width: calc(100% - 210px);
    box-sizing: border-box;
    border: 1px solid #3185de;
    padding: 3px;
    background-color: #3185de;
}
.lgh-quizlet-content iframe {
    border: 1px solid #ffffff;
    border-radius: 10px;
}

/* responsive */
@media screen and (max-width: 1600px) {
    .wrap-lgh-quizlet {
        width: 100%;
        max-width: 600px;
        display: flex;
        flex-direction: column-reverse;
    }

    .wrap-lgh-quizlet .lgh-quizlet-menu {
        width: 100%;
        margin-top: 30px;
    }

    .wrap-lgh-quizlet .lgh-quizlet-content {
        width: 100%;
    }

    .wrap-lgh-quizlet .lgh-quizlet-menu ul {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .wrap-lgh-quizlet .lgh-quizlet-menu ul li {
        width: 48%;
    }
}
/* end quizlet */