1

是否可以在调整浏览器窗口大小时调整网页背景图像的大小？

4

3 回答 3

2

如果您使用CSS3，您有一个名为的新属性background-size，您可以像这样使用它来实现您想要的结果：

body {
  background: url(bgimage.jpg) no-repeat;
  background-size: 100%;
}

请记住，所有浏览器（尤其是 IE）仍然不完全支持 CSS3，结果可能会根据您查看页面的浏览器而有所不同。说了这么多，希望有帮助！

如果您想要对浏览器更友好的东西，您可以考虑使用 javascript 解决方案，该解决方案将捕获窗口调整大小并相应地拉伸图像。

于 2010-06-18T00:11:20.847 回答
2

以下代码展示了如何制作跨浏览器背景图片：

<?xml version='1.0' encoding='UTF-8' ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
  <head>
    <title>Cross Browser Background</title>

    <style type="text/css">
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }

      #background {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
      }

      #content {
        z-index: 1; /* The content should be above the background image */

        margin: 20px 30px;
        background-color: #000;
        color: #FFF;
        padding: 10px 15px;

        /* Just add some fancy transparency */
        opacity: .85; /* Standard: FF gt 1.5, Opera, Safari */
        filter: alpha(opacity=50); /* IE lt 8 */
        -ms-filter: "alpha(opacity=50)"; /* IE 8 */
        -khtml-opacity: .50; /* Safari 1.x */
        -moz-opacity: .50; /* FF lt 1.5, Netscape */
      }
    </style>

    <!-- IE6 sucks as usual - Add some special code for it -->

    <!--[if IE 6]>
      <style type="text/css">
        html {
          overflow-y: hidden;
        }

        body {
          overflow-y: auto;
        }

        #background {
          position:absolute;
          z-index:-1;
        }

        #content {
          position:static;
        }
      </style>
    <![endif]-->
  </head>
  <body>
    <img id="background" src="background.jpg" alt="" />

    <div id="content">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc aliquam placerat justo, in tincidunt purus faucibus quis. Pellentesque facilisis mi id neque laoreet laoreet. Quisque quis metus vitae enim lacinia egestas eu at ipsum. Proin sed justo massa, non consequat lacus. Nullam pulvinar commodo egestas. Vivamus commodo ligula a turpis mattis facilisis. Vestibulum vel massa a lorem pulvinar varius nec ut justo. Donec hendrerit dapibus erat. Aenean interdum, lorem sit amet venenatis tincidunt, augue ipsum tincidunt velit, vel egestas nulla quam non quam. Mauris vulputate libero at purus auctor sed egestas magna vehicula.</p>
    </div>
  </body>
</html>
于 2010-06-18T00:39:29.007 回答
1

是的，像这样：

<img id="background" src="..." alt="Background Image" />

img#background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%
    height: 100%;
}
于 2010-06-18T00:12:13.503 回答