iframe {
    max-width: 100%;
}
.sub2 {
    width: 210px;
    text-align: left;
    position: absolute;
    top: 10px;
    left: 100%;
    padding-top: 1px;
    visibility: hidden;
    opacity: 0;
    -moz-transition: 0.5s ease;
    -o-transition: 0.5s ease;
    -webkit-transition: 0.5s ease;
    transition: 0.5s ease;
}
.sub2 .wrap2 {
    background: #ff001ea6;
}
.sub ul li:hover {
    background: #cc5063;
}
li.link1.active{
     background: #cc5063;
}
li.link2.active{
     background: #cc5063;
}
.sub ul li:last-child {
    border: none;
}
.sub2 ul li {
    position: relative;
    padding: 10px;
    list-style: none;
    cursor: pointer;
    border-bottom: 1px solid white!important;
}
.sub2 ul li:last-child {
    border: none!important;
}
.sub ul li:hover > .sub2{
    visibility: inherit;
    opacity: 1;
}
a.all {
    position: absolute!important;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
}
a.dow {
    padding-top: 10px;
    font-weight: bolder;
}

.tailieu {
    margin-top: 15px;
    border: 1px solid;
    padding: 15px 0px;
    display: flex;
}

.img2 {
    /* max-width: 200px; */
    max-height: 164px;
}

.img2 img {
    width: 100%;
    height: 100%;
}

.content h2 {
    color: #ce0000;
    font-size: 17px;
    font-weight: bold;
}

.content {
    margin: 0px;
    font-weight: 500;
    text-transform: uppercase;
    overflow: hidden;
    margin-bottom: 10px;
    padding-right: 20px;
}
@media(max-width: 767px){
    .tt-1 {
    font-size: 16px!important;
}
   .pd-50{
    padding-bottom: 50px!important
   }
.tab-control a{
     max-width: 90%!important;
}
    iframe {
    max-height: 180px;
}
.tailieu{
    display: inherit;
}
.img2 {height: 250px;margin-bottom: 10px;}
    .footer{
        padding-top: 20px;
    }
    .footer .container .row>div, .footer .modal .modal-dialog .row>div, .modal .footer .modal-dialog .row>div{
        padding-top: 0
    }
    .footer .container .row{
        padding-top: 0
    }
    .footer__title {
    padding-bottom: 5px;
    padding-top: 15px;
}
}