<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSS太极图</title>
<style>
body{
padding: 0;
margin: 0;
}
.br-100{
border-radius: 100%;
}
.round {
width: 200px;
height: 200px;
border: 1px solid black;
margin: 50px auto auto;
background: linear-gradient(to right, black 50%, white 50%);
}
.round-m{
width: 98px;
height: 98px;
border: 0 solid black;
margin-left:25%;
}
.round-x{
width: 20px;
height: 20px;
border: 0 solid black;
margin-left:40%;
margin-top: 40%;
}
.round-m1{
background-color:black;
border: 1px solid black;
}
.round-x1{
background-color:white;
}
.round-m2{
background-color:white;
border: 1px solid rgba(0,0,0,0);
}
.round-x2{
background-color:black;
}
</style>
</head>
<body>
<div class="br-100 round">
<div class="br-100 round-m round-m1">
<div class="br-100 round-x round-x1"></div>
</div>
<div class="br-100 round-m round-m2">
<div class="br-100 round-x round-x2"></div>
</div>
</div>
</body>
</html>
background: linear-gradientto right 这是设置变色由左向右变化当只给颜色属性时,就是渐变色,会有过度区域指定百分比区域,如50%,可以达到直接变色的效果
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