.loader{border-radius:50%;animation:2s linear infinite spin}.loader__center{margin:5px auto}.loader--large{border:16px solid #f3f3f3;border-top-color:#3498db;width:120px;height:120px}.loader--medium{border:8px solid #f3f3f3;border-top-color:#3498db;width:60px;height:60px}.loader--small{border:5px solid #f3f3f3;border-top-color:#3498db;width:20px;height:20px}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0)}to{-webkit-transform:rotate(360deg)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}