.wsb-busy{position:relative;opacity:.9;}
.wsb-spinner{display:inline-block;width:16px;height:16px;margin-left:8px;border-radius:50%;border:2px solid rgba(255,255,255,0.6);border-top-color:#fff;animation:wsbspin .75s linear infinite;vertical-align:-3px}
@keyframes wsbspin{to{transform:rotate(360deg)}}