mahaplatform/reframe

.reframe-scrollpane {
  display: flex;
  flex: 1;
  position: relative;
}
.reframe-scrollpane-inner {
  flex: 1;
  .scrollable;
}
.reframe-scrollpane-signpost {
  position: absolute;
  bottom: 0.5em;
  right: ~"calc(0.5em + 17px)";
  padding: 0.5em;
  background-color: @black;
  border-radius: 50%;
  width: 2.5em;
  height: 2.5em;
  text-align: center;
  color: @white;
  cursor: pointer;
  box-shadow: 0 2px 6px 0 fadeout(@black, 75);
  &:hover {
    background-color: lighten(@black, 25);
  }
}