codekingpro/portable-devtools

1.fade {2  @include transition($transition-fade);3 4  &:not(.show) {5    opacity: 0;6  }7}8 9.collapse {10  &:not(.show) {11    display: none;12  }13}14 15.collapsing {16  position: relative;17  height: 0;18  overflow: hidden;19  @include transition($transition-collapse);20 21  &.width {22    width: 0;23    height: auto;24    @include transition($transition-collapse-width);25  }26}27