.btn:active{box-shadow: 0 5px gray; transform: translateY(2px);}.btn:hover{transform: translateY(2px);}
@media (min-aspect-ratio: 1/1) and (min-width: 1024px) {
  #mobile{
    display: none;
    visibility: hidden;
  }
  #mobile-text{
    display: none;
    visibility: hidden;
  }
}

@media (max-aspect-ratio: 1/1), (max-width: 1024px) {
  #mobile{
    width: 100vw;
    height: 100vh;
    background-color: yellow;
    z-index: 200;
    position: fixed;
    top: 0;
    left: 0;
  }
  #mobile-text{
    color: black;
    font-size: 6vw;
    line-height: 1.1;
    text-align: center;
    top: calc(45vh - 1em);
    position: relative;
  }
}