.paralex {
  position: relative;
  height: auto;
  z-index: 1;
  border-radius: 0.0001px;
  clip-path: inset(0 0 0 0);
  overflow: hidden;
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  backface-visibility: hidden;
}
.paralex .background {
  z-index: -1;
  position: absolute;
  top: 0;
  left: 0;
  width:100%;
  height:100%;
  background-repeat: no-repeat;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  transform: translateZ(0);
  -moz-transform: translatez(0);
  -ms-transform: translatez(0);
  -o-transform: translatez(0);
  -webkit-transform: translateZ(0);
  -webkit-font-smoothing: antialiased; /* seems to do the same in Safari Family of Browsers*/
}
.paralex.fixed .background {
  position: fixed;
}
.paralex .foreground {
  display: block;
  overflow: auto;
}
.not-paralex {
  background: #00aeee;
  foreground: "";
  height: 500px;
}