CSS 日常练习----堆叠上下文练习

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记录日常 CSS 练习的小知识点 —— 堆叠上下文练习

堆叠上下文练习

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>圆角</title>
    <style>
        div.test{
            width: 300px;
            height: 300px;
            border-width:20px 40px;
            border-color: red;
            border-style: solid;
            margin: 20px auto;
            border-top-left-radius: 100px;
        }
        .test1{
            width: 300px;
            height: 300px;
            border-width:20px 40px;
            border-color: red;
            border-style: solid;
            margin: 20px auto;
            border-top-left-radius: 40px;
        }
        .test2{
            width: 300px;
            height: 200px;
            border:20px red solid;
            margin: 20px auto;
            /*border-radius: 150px 0 0 150px/150px 0 0  150px;*/
            border-radius: 150px 0 0 150px;
            /*border-radius: 50% 0 0 50%/50% 0 0  50%;*/
        }
        .test3{
            width: 300px;
            height: 200px;
            border:20px red solid;
            margin: 20px auto;
            /*border-radius: 50% 50% 0 0/100% 100% 0 0;*/
            /*简化:*/
            border-radius: 50%/100% 100% 0 0;
        }
        div.test4{
            width: 300px;
            height: 200px;
            border:20px red solid;
            margin: 20px auto;
            border-radius: 100% 0 0 0;
        }
    </style>
</head>
<body>
<div class="test">边框和内外径</div>
<div class="test1">边框和内外径</div>
<div class="test2">椭圆:</div>
<div class="test3">半椭圆</div>
<div class="test4">四分之一椭圆</div>

</body>
</html>
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