<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
html,
body {
margin: 0;
padding: 0;
height: 100%;
}
.if-top {
display: block;
border: none;
width: 100%;
height: 120px;
}
.if-menu {
width: 20%;
height: 100%;
border: none;
}
.if-content {
width: 78%;
height: 100%;
border: none;
} .div-outer {
height: 100%;
box-sizing: border-box;
padding-top: 100px;
} .div-top {
background-color: burlywood;
height: 100px;
margin-top: -100px;
}
.div-content {
background-color: #8ddad3;
height: 100%;
}
</style>
</head>
<body>
<div class="div-outer">
<div class="div-top">
你好
</div>
<div class="div-content">
世界
</div>
</div>
<!--<iframe class="if-top" src="top.html"></iframe>-->
<!--<iframe class="if-menu" src="menu.html"></iframe>-->
<!--<iframe class="if-content" src="content.html"></iframe>-->
</body>
</html>
这个方法挺好的