body{background-color:#000}h1{color:blue}.default{position:absolute;left:50%;top:50%;-webkit-transform:translate(-50%, -50%);transform:translate(-50%, -50%)}.default img{display:block;margin-left:auto;margin-right:auto;width:30vw;animation:fadeIn 3s}@keyframes fadeIn{0%{opacity:0}100%{opacity:1}}