.container_box{position:relative;width:28px;height:28px}.box,.container_box{display:flex;justify-content:center;align-items:center}.box{position:absolute;width:100%;height:100%;border-radius:5px;font-size:13px;font-weight:500;transform-origin:center;transition:transform 1s ease-in-out;border:1px solid #7e7b7b}.back-box{z-index:2}.front-box{z-index:1;transform:rotate(135deg)}