.loader{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:rgba(0,0,0,.5);display:flex;justify-content:center;align-items:center;z-index:9999}.spinner{width:100px;height:100px;border:4px solid #ccc;border-top-color:#3498db;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}