@keyframes spinner{to{transform:rotate(360deg)}}.spinner{box-sizing:border-box;display:inline-block;position:relative;width:20px;height:20px;background-image:url(https://s3.amazonaws.com/static.synapse.org/images/synapse-logo.svg);animation:spinner 1s linear infinite;background-size:20px 20px;background-repeat:no-repeat}.spinner.white{background-image:url(https://s3.amazonaws.com/static.synapse.org/images/synapse-logo-white.svg)}