.ext_gallery_title {
  margin-left: 10px;
}
.ext_gallery .img-list {
  list-style: none;
  overflow: auto;
  padding: 0px;
  margin-bottom: 10px;
  margin: 0px 10px 0px 10px;
}
.ext_gallery .img-list li {
  display: block;
  float: left;
  overflow: hidden;
  margin: 0px 10px 10px 0px;
  width: 100%;
  height: 200px;
  /* Small devices (tablets, 768px and up) */

  /* Medium devices (desktops, 992px and up) */

  /* Large devices (large desktops, 1200px and up) */

}
@media (min-width: 768px) {
  .ext_gallery .img-list li {
    width: 47%;
    height: 200px;
    margin: 0px 2% 20px 0px;
  }
}
@media (min-width: 992px) {
  .ext_gallery .img-list li {
    width: 23%;
    height: 200px;
    margin: 0px 2% 20px 0px;
  }
}
@media (min-width: 1200px) {
  .ext_gallery .img-list li {
    width: 19%;
    height: 100px;
    margin: 0px 1% 10px 0px;
  }
}
.ext_gallery .img-list li a {
  display: block;
  width: 100%;
  height: 100%;
}
.ext_gallery .img-list li .img-item {
  background-size: cover;
  width: 100%;
  height: 100%;
}