CSS:给出100%高度的背景图像(包括滚动)

时间:2014-04-12 21:55:33

标签: html css background-image

我的HTML由以下内容组成:

<html>
    <body>
    </body>
</html>

它体内有很多东西。这是我的CSS:

html {
    width: 100%;
    height: 100%;
}

body {
    background-image:url("../images/backgroundImage.jpg");
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

html页面的主体有很多东西(足以迫使用户必须向下滚动才能到达页面底部)。问题是背景不会一直向下延伸到页面底部。当我第一次打开html页面时,背景图像占据了所有内容但是当我向下滚动时,只能通过滚动看到的部分有白色背景,图像没有到达需要滚动的部分才能被看到

如何使背景图像延伸到需要滚动的部分才能看到?

3 个答案:

答案 0 :(得分:3)

您可以使用background-attachment: fixed;使背景图像与页面一起滚动,从而无需延伸整个高度。

轻松修复;)

答案 1 :(得分:0)

如果您可以选择其他标记,则可以使用包含所有内容的包装元素。

http://jsfiddle.net/SombreErmine/L6ubk/

<强> HTML:

<div class="page-wrapper">
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</div>

<强> CSS:

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

.page-wrapper {
    background-image:url("http://placekitten.com/200/300");
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

p {
    margin: 0;
    padding: 1em;
}

答案 2 :(得分:0)

你有一些选择:

纯css:

background-size: cover;

这将使背景图像填满页面,无论窗口有多宽/高。当然,您需要关注图像如何以分辨率方式显示。对于拥有大显示器的人来说,你需要一个大的形象。

添加一些html / css:

将背景图像分配给单独的div

<div class="this-has-a-big-bg"></div>

并将其全高度和固定位置放在其他内容后面:

.this-has-a-big-bg {
  postion: fixed;
  z-index: -1;
  height: 100%;
  width: 100%;
}

您还需要将html / body尺寸设置为100%。

或者最后,一些带有on.scroll侦听器的javascript / jquery。但这不应该是必需的。