.hidingPanel,.hidingPanelCollapse, .toggleBtnContainer, .studyBrowserContainer, .studyBrowserContainerCollapse, #btnCollapse,.btnCollapseIcon, .btnCollapseIcon-collapse, .viewportStyle {

  -o-transition: all 0.3s ease-out;
  -ms-transition: all 0.3s ease-out;
  -moz-transition: all 0.3s ease-out;
  -webkit-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
}

.hidingPanel {
  width: 120px;
  height: 100%;
  position: relative;
  float: left;
}

.hidingPanelCollapse{
  width: 0px;
}

.toggleBtnContainer{
  position: absolute;
  top: 0;
  left: 0;
  width: 25px;
  height: 25px;
}

.studyBrowserContainer {
  position: absolute;
  display: block;
  margin-top: 30px;
  height: calc(100% - 30px);
  width: 100%;
  opacity: 1;
}

.studyBrowserContainerCollapse {
  opacity: 0;
  width: 0px;

}
.studyBrowserContainerCollapseDisplay {
  display: none;
}

#btnCollapse{
  position: absolute;
  display: block;
  width: 25px;
  height: 25px;
  line-height: 25px;
  padding: 0;
  border: 0;
  border-top: 1px solid #e6e6e6;
  background: #f6f6f6;
  color: #666;
  font-size: 0.875rem;
  text-align: center;
  cursor: pointer;
}

.btnCollapseIcon-collapse{
  -moz-transform: rotate(180deg);
  -webkit-transform: rotate(180deg);
  transform: rotate(180deg);
}