.space-sec .spacer {
  position: relative;
  height: var(--spacer-mobile, 50px);
  display: block;
}
.space-sec .spacer:before,
.space-sec .spacer:after {
  content: " ";
  display: table;
  clear: both;
}
@media only screen and (min-width: 768px) {
  .space-sec .spacer {
    height: var(--spacer-desktop, 100px);
  }
}