:root{font-family:Arial,Helvetica,sans-serif;font-size:.875em;box-sizing:border-box}*,:after,:before{box-sizing:inherit}.spinner{position:absolute;top:28%;left:50%;margin:auto;border-radius:50%;border-color:blue green red #ff0;border-style:solid;border-width:16px;width:12px;height:12px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}