Html 固定页眉、页脚，内容可滚动
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Fixed header, footer with scrollable content
提问by RKP
回答by John Hartsock
Something like this
像这样的东西
<html>
<body style="height:100%; width:100%">
<div id="header" style="position:absolute; top:0px; left:0px; height:200px; right:0px;overflow:hidden;">
</div>
<div id="content" style="position:absolute; top:200px; bottom:200px; left:0px; right:0px; overflow:auto;">
</div>
<div id="footer" style="position:absolute; bottom:0px; height:200px; left:0px; right:0px; overflow:hidden;">
</div>
</body>
</html>
回答by meyertee
If you're targeting browsers supporting flexible boxes you could do the following.. http://jsfiddle.net/meyertee/AH3pE/
如果您的目标是支持灵活框的浏览器，您可以执行以下操作.. http://jsfiddle.net/meyertee/AH3pE/
HTML
HTML
<div class="container">
<header><h1>Header</h1></header>
<div class="body">Body</div>
<footer><h3>Footer</h3></footer>
</div>
CSS
CSS
.container {
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
flex-wrap: nowrap;
}
header {
flex-shrink: 0;
}
.body{
flex-grow: 1;
overflow: auto;
min-height: 2em;
}
footer{
flex-shrink: 0;
}
Update:
See "Can I use" for browser support of flexible boxes.
更新：
请参阅“我可以使用”以了解浏览器对弹性盒的支持。
回答by Stickers
Approach 1 - flexbox
方法 1 - flexbox
It works great for both known and unknown height elements. Make sure to set the outer div to height: 100%;and reset the default marginon body. See the browser support tables.
它适用于已知和未知的高度元素。确保设置外股利height: 100%;和重置默认margin的body。请参阅浏览器支持表。
html, body {
height: 100%;
margin: 0;
}
.wrapper {
height: 100%;
display: flex;
flex-direction: column;
}
.header, .footer {
background: silver;
}
.content {
flex: 1;
overflow: auto;
background: pink;
}<div class="wrapper">
<div class="header">Header</div>
<div class="content">
<div style="height:1000px;">Content</div>
</div>
<div class="footer">Footer</div>
</div>Approach 2 - CSS table
方法 2 - CSS 表
For both known and unknown height elements. It also works in legacy browsers including IE8.
对于已知和未知的高度元素。它也适用于包括 IE8 在内的传统浏览器。
html, body {
height: 100%;
margin: 0;
}
.wrapper {
height: 100%;
width: 100%;
display: table;
}
.header, .content, .footer {
display: table-row;
}
.header, .footer {
background: silver;
}
.inner {
display: table-cell;
}
.content .inner {
height: 100%;
position: relative;
background: pink;
}
.scrollable {
position: absolute;
left: 0; right: 0;
top: 0; bottom: 0;
overflow: auto;
}<div class="wrapper">
<div class="header">
<div class="inner">Header</div>
</div>
<div class="content">
<div class="inner">
<div class="scrollable">
<div style="height:1000px;">Content</div>
</div>
</div>
</div>
<div class="footer">
<div class="inner">Footer</div>
</div>
</div>Approach 3 - calc()
方法 3 - calc()
If header and footer are fixed height, you can use CSS calc().
如果页眉和页脚是固定高度，则可以使用 CSS calc()。
html, body {
height: 100%;
margin: 0;
}
.wrapper {
height: 100%;
}
.header, .footer {
height: 50px;
background: silver;
}
.content {
height: calc(100% - 100px);
overflow: auto;
background: pink;
}<div class="wrapper">
<div class="header">Header</div>
<div class="content">
<div style="height:1000px;">Content</div>
</div>
<div class="footer">Footer</div>
</div>Approach 4 - % for all
方法 4 - 所有人的 %
If the header and footer are known height, and they are also percentage you can just do the simple math making them together of 100% height.
如果页眉和页脚是已知的高度，并且它们也是百分比，你可以做简单的数学运算，使它们成为 100% 的高度。
html, body {
height: 100%;
margin: 0;
}
.wrapper {
height: 100%;
}
.header, .footer {
height: 10%;
background: silver;
}
.content {
height: 80%;
overflow: auto;
background: pink;
}<div class="wrapper">
<div class="header">Header</div>
<div class="content">
<div style="height:1000px;">Content</div>
</div>
<div class="footer">Footer</div>
</div>回答by abajanda
Here's what worked for me. I had to add a margin-bottom so the footer wouldn't eat up my content:
这对我有用。我不得不添加一个 margin-bottom 以便页脚不会吃掉我的内容：
header {
height: 20px;
background-color: #1d0d0a;
position: fixed;
top: 0;
width: 100%;
overflow: hide;
}
content {
margin-left: auto;
margin-right: auto;
margin-bottom: 100px;
margin-top: 20px;
overflow: auto;
width: 80%;
}
footer {
position: fixed;
bottom: 0px;
overflow: hide;
width: 100%;
}
回答by sheriffderek
As of 2013: This would be my approach. jsFiddle:
截至 2013 年：这将是我的方法。 js小提琴：
HTML
HTML
<header class="container global-header">
<h1>Header (fixed)</h1>
</header>
<div class="container main-content">
<div class="inner-w">
<h1>Main Content</h1>
</div><!-- .inner-w -->
</div> <!-- .main-content -->
<footer class="container global-footer">
<h3>Footer (fixed)</h3>
</footer>
SCSS
社会保障局
// User reset
* { // creates a natural box model layout
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
} // asume normalize.css
// structure
.container {
position: relative;
width: 100%;
float: left;
padding: 1em;
}
// type
body {
font-family: arial;
}
.main-content {
h1 {
font-size: 2em;
font-weight: bold;
margin-bottom: .2em;
}
} // .main-content
// style
// variables
$global-header-height: 8em;
$global-footer-height: 6em;
.global-header {
position: fixed;
top: 0; left: 0;
background-color: gray;
height: $global-header-height;
}
.main-content {
background-color: orange;
margin-top: $global-header-height;
margin-bottom: $global-footer-height;
z-index: -1; // so header will be on top
min-height: 50em; // to make it long so you can see the scrolling
}
.global-footer {
position: fixed;
bottom: 0;
left: 0;
height: $global-footer-height;
background-color: gray;
}
回答by Harrison Smith
Now we've got CSS grid. Welcome to 2019.
现在我们有了 CSS 网格。欢迎来到 2019 年。
/* Required */
body {
margin: 0;
height: 100%;
}
#wrapper {
height: 100vh;
display: grid;
grid-template-rows: 30px 1fr 30px;
}
#content {
overflow-y: scroll;
}
/* Optional */
#wrapper > * {
padding: 5px;
}
#header {
background-color: #ff0000ff;
}
#content {
background-color: #00ff00ff;
}
#footer {
background-color: #0000ffff;
}<body>
<div id="wrapper">
<div id="header">Header Content</div>
<div id="content">
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</div>
<div id="footer">Footer Content</div>
</div>
</body>