12345678910111213class="clock"class="line line1"class="line line2"class="line line3"class="line line4"class="line line5"class="line line6"class="cover"class="hour"class="minute"class="second"class="center"
1234567891011121314151617181920212223242526272829303132333435363738394041* {padding:0;margin:0;}.clock {width:300px;height:300px;border:10px solid #ccc;/*border-radius:160px;*//*百分比参照元素的实际宽高*/border-radius:50%;margin:100px auto;position:relative;}.line {width:8px;height:300px;background-color:#ccc;position:absolute;/*参照父容器的宽*/left:50%;top:0;/*参照元素本身*/transform:translate(-50%,0);}.line1,.line4 {width:10px;}.line2 {transform:translate(-50%,0) rotate(30deg);}.line3 {transform:translate(-50%,0) rotate(60deg);}.line4 {transform:translate(-50%,0) rotate(90deg);}.line5 {transform:translate(-50%,0) rotate(120deg);}
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