.is-loading{position:relative;cursor:wait;opacity:.9}button.is-loading::after{content:"";width:16px;height:16px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;position:absolute;right:14px;top:50%;transform:translateY(-50%);animation:btnspin .75s linear infinite}@keyframes btnspin{to{transform:translateY(-50%) rotate(360deg)}}