.expanding-grid {
  position: relative;
  width: 100%;
}
.expanding-grid .links {
  display: block;
  margin: 0 -1em;
  overflow: hidden;
  padding: 1em 0;
}
.expanding-grid .links > li {
  box-sizing: border-box;
  float: left;
  padding: 1em;
}
.expanding-grid .links > li a {
  /* background: orange; */
  color: #fff;
  display: block;
  font-size: 2em;
  line-height: 1;
 /*  padding: 25% 1em; */
  position: relative;
  text-align: center;
  text-decoration: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.expanding-grid .links > li a:hover {
  /* background: #ffb733; */
}
.expanding-grid .links > li a.active {
  /* background: #cc8400; */
}
.expanding-grid .links > li a.active:after {
  background-color: transparent;
  border-bottom: 0.375em solid #f5f5f5;
  border-left: 0.375em solid transparent;
  border-right: 0.375em solid transparent;
  bottom: -0.5em;
  content: '';
  height: 0;
  left: 50%;
  margin-left: -0.375em;
  position: absolute;
  width: 0;
}
@media only screen and (max-width: 40em) {
  .expanding-grid .links > li {
    width: 100%!important;
  }
  .expanding-grid .links > li:nth-of-type(2n+1) {
    clear: left;
  }
}
@media only screen and (max-width: 43.99em) {
  .expanding-grid .links > li {
    width: 50%;
  }
  .expanding-grid .links > li:nth-of-type(2n+1) {
    clear: left;
  }
}
@media only screen and (min-width: 44em) and (max-width: 59.99em) {
  .expanding-grid .links > li {
    width: 33.33333%;
  }
  .expanding-grid .links > li:nth-of-type(3n+1) {
    clear: left;
  }
}
@media only screen and (min-width: 60em) {
  .expanding-grid .links > li {
    width: 25%;
  }
  .expanding-grid .links > li:nth-of-type(4n+1) {
    clear: left;
  }
}
.expanding-grid .spacer {
  background-color: #888;
  clear: both;
  display: block;
  margin: 0 1em;
}
.expanding-grid .expanding-container {
  clear: both;
  display: none;
  overflow: hidden;
  width: 100%;
  background-color:#f5f5f5;
}
.expanding-grid .expanding-container.expanded, .expanding-grid .expanding-container:target {
  display: block;
}
.expanding-grid .hentry {
  background: #888;
  box-sizing: border-box;
  clear: both;
  color: #fff;
  min-height: 4em;
  overflow: hidden;
  padding: 2em;
  width: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.expanding-grid .hentry .entry-image {
  box-sizing: border-box;
  float: right;
  margin-left: 1em;
  padding: 0.25em 0 0.52em 1em;
  text-align: center;
  width: 50%;
}
.expanding-grid .hentry .entry-title {
  font-size: 1.5em;
}
.expanding-grid .close-button {
  background: url(../imgs/closePanel.png) top left no-repeat;
  color: #fff;
  display: inline-block;
  height: 20px;
  line-height: 1;
  overflow: hidden;
  padding: 1.5em 2em;
  text-decoration: none;
  text-indent: 5em;
  white-space: nowrap;
  width: 20px;
  will-change: opacity;
  z-index: 5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.expanding-grid .close-button.active {
  -webkit-transition: opacity 0.2s;
  transition: opacity 0.2s;
}
.expanding-grid .close-button:hover {
  opacity: 0.5;
}

.img-placeholder {
  background: orange;
  color: #fff;
  font-size: 4em;
  font-weight: 300;
  line-height: 1;
  padding: 25% 0.25em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.list-box{float:left;width:100%;}

/* 10.1.17 AN - line for .links.giangvien*/

/*.links.giangvien li:nth-child(5)::before{
    content:'';
    width:50%;
     position:absolute;
    top:auto;    
    border-top:2px dashed #ccc;
     left: 0; 
  right: 0; 
  margin-left: auto; 
  margin-right: auto; 

}*/