.cover{float:left;-o-transition:all 1s;border-radius:50%;transition:all 1s;position:relative;overflow:hidden}.cover2{float:left;border-radius:50%;position:relative;overflow:hidden}.cover:hover{border-color:#00bbe3}.box3d{-webkit-backface-visibility:hidden;-moz-backface-visibility:hidden;width:100%;height:100%;-webkit-transform-style:preserve-3d;border-radius:50%;justify-content:center;align-items:center;transition:all 1s cubic-bezier(.175,.885,.32,1.275);display:flex;position:absolute;top:0;left:0}.box3d:first-child{-webkit-transform:rotateY(180deg);-moz-transform:rotateY(180deg)}.cover:hover .box3d{transform:rotateY(180deg)}.cover:hover .box3d:first-child{z-index:1;transform:rotateY(0)}