[英]css image/content over 2 <div> and vertically centered
I need to split the background of an html page in 2 (horizontally). 我需要将html页面的背景一分为二(水平)。 The top and bottom part will have a different background image/texture, that will be repeated, in other words expandable with the window's size.
顶部和底部将具有不同的背景图像/纹理,将重复该背景图像/纹理,换句话说,可以随窗口的大小扩展。 On top of this "split background", I want to display some content, like texts or images.
在此“拆分背景”之上,我想显示一些内容,例如文本或图像。
This code generates a "split background" like I want, but I can't/don't know how to put content on top of that... 这段代码会生成我想要的“分割背景”,但是我不知道如何将内容放在上面。
<html>
<head>
<style type="text/css">
html{height: 100%;}
body { width: 100%; height: 100%; }
.top { width: 100%; height: 50%; background-image:url('img/top.jpg'); }
.bottom { width: 100%; height: 50%; background-image:url('img/bottom.jpg'); }
</style>
</head>
<body>
<div class="top"></div>
<div class="bottom"></div>
</body>
</html>
The content should be centered vertically and horiontally on top of this "split background". 内容应在此“拆分背景”的顶部垂直并水平居中。 I tried to use a third div, play with z-indexes and use the css3 multiple bg feature, but I couldn't get the result wanted.
我尝试使用第三个div,使用z-indexes并使用css3多bg功能,但是我无法获得想要的结果。 Any suggestions?
有什么建议么?
Example using position:fixed
: 使用
position:fixed
示例:
http://jsfiddle.net/LBQbb/3/ http://jsfiddle.net/LBQbb/3/
To vertically center content with unknown height, you can use this technique: 若要垂直居中放置高度未知的内容,可以使用以下技术:
http://www.jakpsatweb.cz/css/css-vertical-center-solution.html http://www.jakpsatweb.cz/css/css-vertical-center-solution.html
Ok at the end I couldn't find a solution in CSS. 好的,最后我找不到CSS解决方案。 The content image I was placing over the 2 other divs would not align correctly if the browser window was too small...
如果浏览器窗口太小,我放在其他2个div上的内容图像将无法正确对齐...
I solved it using some javascript, since the site I develop already contains Javascript, it wasn't an issue. 我使用一些JavaScript解决了该问题,因为我开发的网站已经包含Javascript,所以这不是问题。
Here is the html: 这是html:
<html>
<head>
<link href="css/reset-min.css" rel="stylesheet" type="text/css">
<link href="css/styles.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="js/jquery-1.6.4.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(window).resize(function(){
$('.content').css({
position:'absolute',
left: ($(window).width()
- $('.content').outerWidth())/2,
top: ($('body').height()
- $('.content').outerHeight())/2
});
});
//To initially run the function:
$(window).resize();
});
</script>
</head>
<body onload="$(window).resize()"> <!-- needed to correct loading bug -->
<div class="top"></div>
<div class="bottom"></div>
<div class="content">
<img alt="Content" src="img/01_illustration.png" />
</div>
</body>
</html>
And the css: 和CSS:
html, body { width:100%; height: 100%; }
body { min-height: 768px; min-width: 1024px; }
.top { width: 100%; height: 50%; background-image:url('img/01_texture_top.jpg'); }
.bottom { width: 100%; height: 50%; background-image:url('img/01_texture_bottom.jpg'); }
.content {}
Just create a third div. 只需创建第三个div。 as it comes afterwards it should be displayed on top without needing z-indexes.
之后,它应该显示在顶部,而不需要z-indexs。
<html>
<head>
<style type="text/css">
html{height: 100%;}
body { width: 100%; height: 100%; min-width:950px; min-height: 950px;}
.top { width: 100%; height: 50%; background-image:url('img/top.jpg'); }
.bottom { width: 100%; height: 50%; background-image:url('img/bottom.jpg'); }
.third { position: absolute; top:50%; left:50%; width: 900px; margin-left: -450px; margin-top: -450px; }
</style>
</head>
<body>
<div class="top"></div>
<div class="bottom"></div>
<div class="third"> add content here</div>
</body>
adding the position absolute and setting it to top,left = (0,0) you can afterwards work with it without a problem. 添加绝对位置并将其设置为top,left =(0,0),之后可以毫无问题地使用它。 Ignoring the other divs that give color to the background.
忽略其他为背景赋予颜色的div。
Edit: 编辑:
Fixed to answer to your comment. 固定回答您的评论。 Like that it will create a box 900px by 900px always centered in the middle of the screen.
这样,它将创建一个始终位于屏幕中间居中的900px x 900px的框。
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