Feste Boxen erfordern eine absolute Positionierung, um die folgenden Effekte zu erzielen. Ich hoffe, es gibt Meister, die die folgenden Methoden ohne absolute Positionierung erreichen können! Bitte gebt mir einen Rat
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
html,
body {
height: 100%;
padding: 0;
margin: 0;
overflow: hidden;
}
.outer {
height: 100%;
padding: 100px 0 0;
box-sizing: border-box;
}
.A {
height: 100px;
background: #BBE8F2;
position: absolute;
top: 0;
left: 0;
width: 100%;
}
.B {
height: 100%;
background: #D9C666;
overflow: scroll;
}
</style>
</head>
<body>
<p class="outer">
<p class="A"> 头部p </p>
<p class="B">
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
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<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
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<p>abcabsdf</p>
<p>abcabsdf</p>
<p>abcabsdf</p>
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<p>abcabsdf</p>
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<p>abcabsdfD</p> <p>abcabsdf</p>
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<p>abcabsdf</p>
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<p>abcabsdfD</p> <p>abcabsdf</p>
<p>abcabsdf</p>
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<p>abcabsdf</p>
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<p>abcabsdfD</p> <p>abcabsdf</p>
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<p>sssssssssssssssssssssss</p>
</p>
</p>
</body>
</html>
![[Web-Frontend] Node.js-Schnellstart](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
问题有点模糊，如果是要求A+B等于outer的高度，可以用
calc(100% - 100px);浮动 固定定位
你的问的不太明白啊，能说的具体点吗？