在下面所示的标记中，我试图让内容div一直延伸到页面的底部，但只有在有内容要显示时才会拉伸。我想这样做的原因是，即使没有任何内容显示，垂直边界仍然出现在页面下方。
下面是我的演示:
body {
font-family: Trebuchet MS, Verdana, MS Sans Serif;
font-size:0.9em;
margin:0;
padding:0;
}
div#header {
width: 100%;
height: 100px;
}
#header a {
background-position: 100px 30px;
background: transparent url(site-style-images/sitelogo.jpg) no-repeat fixed 100px 30px;
height: 80px;
display: block;
}
#header, #menuwrapper {
background-repeat: repeat;
background-image: url(site-style-images/darkblue_background_color.jpg);
}
#menu #menuwrapper {
height:25px;
}
div#menuwrapper {
width:100%
}
#menu, #content {
width:1024px;
margin: 0 auto;
}
div#menu {
height: 25px;
background-color:#50657a;
}
<form id="form1">
<div id="header">
<a title="Home" href="index.html" />
</div>
<div id="menuwrapper">
<div id="menu">
</div>
</div>
<div id="content">
</div>
</form>
试试http://mystrd.at/modern-clean-css-sticky-footer/
上面的链接坏了，但是这个链接https://stackoverflow.com/a/18066619/1944643是好的。: D
演示:
<!DOCTYPE html>
<head>
<meta charset="UTF-8">
<meta name="author" content="http://mystrd.at">
<meta name="robots" content="noindex, nofollow">
<title>James Dean CSS Sticky Footer</title>
<style type="text/css">
html {
position: relative;
min-height: 100%;
}
body {
margin: 0 0 100px;
/* bottom = footer height */
padding: 25px;
}
footer {
background-color: orange;
position: absolute;
left: 0;
bottom: 0;
height: 100px;
width: 100%;
overflow: hidden;
}
</style>
</head>
<body>
<article>
<!-- or <div class="container">, etc. -->
<h1>James Dean CSS Sticky Footer</h1>
<p>Blah blah blah blah</p>
<p>More blah blah blah</p>
</article>
<footer>
<h1>Footer Content</h1>
</footer>
</body>
</html>
我将尝试在标题中直接回答这个问题，而不是拼命在页面底部添加页脚。
如果没有足够的内容来填充可用的垂直浏览器视口，让div扩展到页面底部:
演示地址:http://jsfiddle.net/NN7ky(拖动框架手柄查看效果)
(优点:干净、简单。缺点:需要flexbox - http://caniuse.com/flexbox)
HTML:
<body>
<div class=div1>
div1<br>
div1<br>
div1<br>
</div>
<div class=div2>
div2<br>
div2<br>
div2<br>
</div>
</body>
CSS:
* { padding: 0; margin: 0; }
html, body {
height: 100%;
display: flex;
flex-direction: column;
}
body > * {
flex-shrink: 0;
}
.div1 { background-color: yellow; }
.div2 {
background-color: orange;
flex-grow: 1;
}
哒哒，或者我只是太困了
试试http://mystrd.at/modern-clean-css-sticky-footer/
上面的链接坏了，但是这个链接https://stackoverflow.com/a/18066619/1944643是好的。: D
演示:
<!DOCTYPE html>
<head>
<meta charset="UTF-8">
<meta name="author" content="http://mystrd.at">
<meta name="robots" content="noindex, nofollow">
<title>James Dean CSS Sticky Footer</title>
<style type="text/css">
html {
position: relative;
min-height: 100%;
}
body {
margin: 0 0 100px;
/* bottom = footer height */
padding: 25px;
}
footer {
background-color: orange;
position: absolute;
left: 0;
bottom: 0;
height: 100px;
width: 100%;
overflow: hidden;
}
</style>
</head>
<body>
<article>
<!-- or <div class="container">, etc. -->
<h1>James Dean CSS Sticky Footer</h1>
<p>Blah blah blah blah</p>
<p>More blah blah blah</p>
</article>
<footer>
<h1>Footer Content</h1>
</footer>
</body>
</html>
