<div class="stamp"></div> --- 用 before 跟 after 拼出那個直槓和斜槓 Reference: https://hackmd.io/J0YP6hp2SL-2v1rZsHG70w <style> .stamp { background-color: transparent; border: 5px solid #ff6666; width: 50px; height: 50px; border-radius: 50%; position: relative; } .stamp:before { content: ''; background-color: #ff6666; position: absolute; height: 100%; width: 5px; left: calc(50% - 2.5px); } .stamp:after { content: ''; background-color: #ff6666; position: absolute; height: 5px; width: 52%; left: 2px; top: calc(50% + 5px); transform: rotate(-45deg); } </style>