.fade {
  opacity: 0;
  -webkit-transition: opacity .15s linear;
       -o-transition: opacity .15s linear;
          transition: opacity .15s linear;
}
.fade.in {
  opacity: 1;
}
.collapse {
  display: none;
}
.collapse.in {
  display: block;
}
tr.collapse.in {
  display: table-row;
}
tbody.collapse.in {
  display: table-row-group;
}
.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  -webkit-transition-timing-function: ease;
       -o-transition-timing-function: ease;
          transition-timing-function: ease;
  -webkit-transition-duration: .35s;
       -o-transition-duration: .35s;
          transition-duration: .35s;
  -webkit-transition-property: height, visibility;
       -o-transition-property: height, visibility;
          transition-property: height, visibility;
}
div.collapse_image.collapse {
  display: block;
  background-image: url("../icons/data_toggle_closed.png");
  background-repeat: no-repeat;
  min-height: 20px !important;
  cursor: pointer;
}
div.collapse_image.collapse.in, div.collapse_image.collapsing {
  display: block;
  background-image: url("../icons/data_toggle_open.png");
  background-repeat: no-repeat;
  min-height: 20px !important;
  cursor: pointer;
}