用css画出一个圆圈，里面有个叉号（不能用英文字母x）

#cyc {        width: 150px;        height: 150px;        margin: 100px auto;        border-radius: 50%;        border: 5px solid #000000;        position: relative;      }      #cyc::before {        content: "";        display: block;        width: 100px;        height: 20px;        background: #000;        position: absolute;        top: 50%;        left: 50%;        transform: translate(-50%, -50%) rotate(45deg);      }      #cyc::after {        content: "";        display: block;        width: 100px;        height: 20px;        background: #000;        position: absolute;        top: 50%;        left: 50%;        transform: translate(-50%, -50%) rotate(-45deg);      }

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