:root{--white:#fff;--black:#000;--yellow:#ffd600}html{width:100%;min-height:100vh;background:var(--yellow);margin:0;position:relative}.loader{width:50px;height:50px;padding:30px;border:5px solid var(--yellow);border-bottom-color:var(--black);border-radius:50%;display:inline-block;box-sizing:border-box;animation:spin 1.25s linear infinite;position:absolute;top:50%;left:50%;transform-origin:0 0}@keyframes spin{0%{transform:rotate(0deg) translate(-50%,-50%)}to{transform:rotate(1turn) translate(-50%,-50%)}}