.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:38px;height:38px;border-radius:9999px;background:rgba(0,0,0,.35);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;line-height:1;transition:background .2s}.banner-arrow:hover{background:rgba(0,0,0,.6)}.banner-arrow.left{left:12px}.banner-arrow.right{right:12px}