* {
  margin: 0;
  padding: 0; }

body {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  background-image: radial-gradient(circle, #555, #333 90%); }

#wrapper {
  position: relative;
  height: 320px;
  transform-style: preserve-3d;
  perspective: 1600px;
  box-shadow: 0px 0px 18px 4px #333;
  transform: scale3d(0.7, 0.7, 0.7) rotateY(-35deg) rotateX(-2deg);
  -webkit-transform-origin: 50% 50% 0;
  perspective-origin: 50% -240px; }
  @media (min-width: 768px) and (max-width: 1023px) {
    #wrapper {
      transform: scale3d(0.7, 0.7, 0.7) rotateY(-35deg) rotateX(-2deg); } }
  @media (max-width: 480px) {
    #wrapper {
      transform: scale3d(0.4, 0.4, 0.4) rotateY(-35deg) rotateX(-2deg); } }
  #wrapper:before {
    content: '';
    position: absolute;
    top: -100px;
    left: 0;
    background-color: #555;
    width: 100%;
    height: 100px;
    transform: rotateX(90deg);
    transform-origin: bottom left; }
  #wrapper:after {
    content: '';
    position: absolute;
    top: 0;
    left: 100%;
    background-color: #333;
    width: 100px;
    height: 100%;
    transform: rotateY(-90deg) translateZ(0px) translateX(-100px);
    transform-origin: bottom left; }