button.is-loading,input[type=submit].is-loading{position:relative;pointer-events:none;opacity:.7}button.is-loading::after,input[type=submit].is-loading::after{content:"";position:absolute;top:50%;left:50%;width:16px;height:16px;margin-top:-8px;margin-left:-8px;border:2px solid #fff;border-top-color:transparent;border-radius:50%;animation:yeekit-spin .6s linear infinite}