如何将背景图像拉伸到整个 TD 单元？

Stretching a Background Image across a TD Cell

In HTML, TD elements represent table data cells. Styling these cells can enhance the presentation of tabular data. This article addresses a specific styling challenge: stretching a background image across an entire TD cell.

To achieve this effect, modify the CSS script as follows:

<code class="css">.style1 {
  background: url(images/bg.jpg) no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}</code>

• background: Defines the background image source, position, and repetition. "cover" ensures the image fills the entire cell.
• -webkit-background-size: Vendor prefix for WebKit-based browsers (e.g., Safari, Chrome).
• -moz-background-size: Vendor prefix for Mozilla-based browsers (e.g., Firefox).
• -o-background-size: Vendor prefix for Opera browser.
• background-size: Non-vendor prefixed version supported by modern browsers.

Compatibility:

This solution works well in the following browsers:

• Safari 3+
• Chrome Whatever+
• IE 9+
• Opera 10+
• Firefox 3.6+

Additional Considerations for IE:

For Internet Explorer versions prior to 9, an alternative approach is available:

<code class="css">filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.myBackground.jpg', sizingMethod='scale');
-ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='myBackground.jpg', sizingMethod='scale')";
zoom: 1;</code>

This method utilizes Microsoft's AlphaImageLoader filter to achieve the background image stretching effect. However, it should be noted that this approach may not be as reliable or performant as modern CSS techniques.

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