.dim { position: fixed; left: 0; top: 0; width: 100vw; height: 100vh; background-color: rgba(0, 0, 0, 0.4); outline: 0; overflow: hidden; z-index: 5000; opacity: 0; visibility: hidden; transition: visibility 0.1s, opacity 0.5s, padding-top 0.4s; text-align: center; padding-top: 20px; }
.dim.show { opacity: 1; visibility: visible; padding-top: 50px; }