canvas{position:fixed;top:0;left:0;display:block}.spinner{position:absolute;top:50%;left:50%;width:50px;height:50px;margin:-25px 0 0 -25px;border:5px solid rgba(251,4,4,.1);border-top:5px solid #c11414;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}