#main-menu li ul:hover{
  /*  background: #155899!important;*/
}
#main-menu li ul a:hover {
    color: #fff!important;
    font-size: 15px;
    font-weight: 400;
    line-height: 10px;
    text-transform: uppercase;
    font-family: 'Noto Serif', serif;
background: #155899!important;
}
.hidden{
    display: none;
}

/*=============== backtotop====================*/
.backtotop {
  /*background-color: #2689EF;*/
  background: rgb(28, 85, 153);
  width: 40px;
  height: 40px;
  bottom: 15px;
  z-index: 999;
  right: 12px;
  padding: 5px 0;
  border: 1px solid;
  overflow: hidden;
  position: fixed;
  display: block;
  text-align: center;
  -webkit-border-radius: 30px;
  -moz-border-radius: 30px;
  border-radius: 30px;
  color: #fff; 

}

.backtotop i {
  font-size: 27px;
  margin: 0;
  padding-right: 0;
  display: block; }

.backtotop:hover {
  color: #fff; }

#thong-bao ul>div>li>a, .de-cuong-bai-giang ul>li>a, .tong-khoa ul>div>li>a {
    color: #6f6f6f;
    font-size: 16px;
    font-weight: 300;
    line-height: 24px;
}

 .img-height{
    height: auto!important;
}


 .banner {
    margin-top: 8%;
}

.info-ts h3 a {
    color: #fff;
    font-family: "Noto Serif", serif;
    font-size: 17px;
    font-weight: 400;
    line-height: 24px;
}


/*=============== trang list tin tuyen sinh====================*/
@media (min-width: 992px) {
  #main-menu > li {
   float: none;
   display: table-cell;
   width: 1%;
   text-align: center;
  }
 }
@media(max-width:767px){
    .topic-content .thumb.large{
        width: 100%!important;
        height: auto!important;
    }
    .topic-content .article.style-3 .content{
        margin-left:0!important;
        width:100%;
        float:left;
    }
    .topic-content .article.style-3 .ellipsis{
        height:auto!important;
    }
}
/* menu mobile*/
#main-menu .sub-arrow:before {
    font-size: 17px;
    position: absolute;
    content: "\f107";
    font-family: FontAwesome;
    font-weight: bold;
    background-color: transparent;
    left: 11px;
    top: 6px;
}
.sm-simple a span.sub-arrow {
    display: none;
}
@media (max-width: 991px) {
    .sm-simple a span.sub-arrow {
        position: absolute;
        top: 50%;
        margin-top: -17px;
        left: auto;
        right: 20px;
        width: 34px;
        height: 34px;
        overflow: hidden;
        font: bold 0px monospace !important;
        text-align: center;
        text-shadow: none;
        background: none;
        display:block;
    }
    .has-submenu.highlighted .sub-arrow:before {
        font-size: 17px;
        position: absolute;
        content: "\f106" !important;
        font-family: FontAwesome;
        font-weight: bold;
        background-color: transparent;
        left: 11px;
        top: 6px;
    }
}

.content-write *{
	    font-family: "Roboto", Arial, Helvetica, sans-serif!important;
font-size: 16px!important;
}
/*=======Video Youtube=======*/
.main-video iframe {
    width: 100%;
    height: 600px;
    text-align: center;
    margin-top: 10px;
}

.color-namevideo {
    color: #0f5398;
    font-weight: bold;
}

.list-video iframe {
    width: 100%;
    min-height: 300px;
}

.list-video .col-sm-6.col-lg-4:nth-child(3n+1) {
    clear: both;
}
/*============En==============*/