.container {
  width: 100%;
  margin: 0 auto;
}
.div-img {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.div-img.hidden {
  overflow: hidden;
}
.div-img .img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  transform: scale(1.2);
  -ms-transform: scale(1.2);
  -moz-transform: scale(1.2);
  -webkit-transform: scale(1.2);
  -o-transform: scale(1.2);
  -webkit-transition: all 500ms ease-in-out;
  -moz-transition: all 500ms ease-in-out;
  -ms-transition: all 500ms ease-in-out;
  -o-transition: all 500ms ease-in-out;
}
.div-img:hover .img {
  transform: scale(1);
  -ms-transform: scale(1);
  -moz-transform: scale(1);
  -webkit-transform: scale(1);
  -o-transform: scale(1);
}