@keyframes btn-spin{to{transform:rotate(1turn)}}.btn-spinner{display:inline-block;width:14px;height:14px;border:2px solid hsla(0,0%,100%,.3);border-top-color:#fff;border-radius:50%;animation:btn-spin .6s linear infinite;vertical-align:middle;margin-right:6px}.btn-spinner--dark{border-color:#377dff rgba(0,0,0,.15) rgba(0,0,0,.15)}