Windows NT P3613 10.0 build 20348 (Windows Server 2022) AMD64

C:/Inetpub/vhosts/gyandeepclasses.com/pdpandyamcc.com/scss/bootstrap/

C:/Inetpub/vhosts/gyandeepclasses.com/pdpandyamcc.com/scss/bootstrap/_transitions.scss

 .fade {
  @include transition($transition-fade);

  &:not(.show) {
    opacity: 0;
  }
}

.collapse {
  &:not(.show) {
    display: none;
  }
}

.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  @include transition($transition-collapse);
}