circle, ring { height:256px;position:relative;width:256px;} circle { margin:0 auto;} ring { background-color:rgba(0,0,0,0.5);border-radius:50%;opacity:0;webkit-transform-origin:50%50%;moz-transform-origin:50%50%;transform-origin:50%50%;webkit-transform:scale(0.1)rotate(-270deg);... 20210311