tools/side_chain_tool/web/node_modules/bootstrap/scss/_transitions.scss

   1 // stylelint-disable selector-no-qualifying-type
   2
   3 .fade {
   4   @include transition($transition-fade);
   5
   6   &:not(.show) {
   7     opacity: 0;
   8   }
   9 }
  10
  11 .collapse {
  12   &:not(.show) {
  13     display: none;
  14   }
  15 }
  16
  17 .collapsing {
  18   position: relative;
  19   height: 0;
  20   overflow: hidden;
  21   @include transition($transition-collapse);
  22 }