.loader{display:inline-block;width:30px;height:30px;position:relative;border:4px solid #fff;animation:loader 2s ease infinite}.loader-inner{vertical-align:top;display:inline-block;width:100%;background-color:#fff;animation:loader-inner 2s ease-in infinite}@keyframes loader{0%,50%{transform:rotate(0deg)}25%,75%{transform:rotate(180deg)}to{transform:rotate(1turn)}}@keyframes loader-inner{0%,25%{height:0}50%,75%{height:100%}to{height:0}}