#main-menu .hover-sub:hover{
    background: #155899!important;
}
#main-menu .hover-sub a:hover {
    color: #fff!important;
    font-size: 15px;
    font-weight: 400;
    line-height: 10px;
    /*text-transform: uppercase;*/
    font-family: 'Noto Serif', serif;
}

.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;
}
/*slider + gioi thieu phong*/
.banner .owl-carousel {
  width: 65%;
  float: right; }
.banner .text-info-phong {
  width: 35%!important;
  float: left;
  padding: 21px 35px!important;
}
.banner .item {
  -webkit-transition: all 0.5s ease;
  -moz-transition: all 0.5s ease;
  -ms-transition: all 0.5s ease;
  -o-transition: all 0.5s ease;
  transition: all 0.5s ease; }

@media (max-width: 919px) {
  .banner .owl-prev,
  .banner .owl-next {
    width: 100px;
    height: 50px;
    line-height: 50px; }
  .banner .owl-prev-icon:before,
  .banner .owl-next-icon:before {
    font-size: 30px; } }

/* -----------------------------------
  * BANNER
  * 
-------------------------------------- */
@media (max-width: 1170px) {
  .banner .container {
    padding: 0; } }
@media (max-width: 991px) {
  .banner .owl-carousel, .banner .text-info-phong {
    width: 100%!important;
    float: left; } }
@media (max-width: 991px) {
  .banner .owl-carousel {
    margin-bottom: 10px; }
  .banner .bg-16579a {
    background: #fff; }
  .banner .text-info-phong {
    width: 100%;
    float: none;
    clear: both;
    margin: 0 auto; } }
@media (max-width: 991px) and (min-width: 768px) {
  .banner .text-info-phong {
    width: 750px; } }
@media (max-width: 767px) {
  .banner .text-info-phong {
    padding: 0 15px; } }

.text-h4 a{
    color: #414141!important;
}

.lich-cong-tac-hoat-dong {
    margin-top:
}

@media (min-width: 768px){
.col-sm-6 {
    width: 45%;
}
}

.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==============*/