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How to Maintain Opacity in Div Backgrounds in IE8?

Patricia Arquette
Patricia ArquetteOriginal
2024-11-08 20:54:02637browse

How to Maintain Opacity in Div Backgrounds in IE8?

How to Maintain Opacity in Div's Background When Using IE 8?

In Internet Explorer 8, adjusting the opacity of a div's background can affect the elements it contains.

Solution: Use rgba() Color

To address this issue, set the background color using the rgba() function:

.myelement {
    background: rgba(200, 54, 54, 0.5);
}

The fourth value in rgba() represents the alpha channel, controlling opacity.

IE8 Compatibility Using CSS3Pie

Unfortunately, rgba() is not supported in IE8. To enable it, utilize CSS3Pie:

.myelement {
    background: rgba(200, 54, 54, 0.5);
    -pie-background:  rgba(200, 54, 54, 0.5);
    behavior: url(PIE.htc);
}

Alternative: IE Filter Option

Alternatively, IE's filter property with the gradient keyword can achieve a similar effect:

.myelement {
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#33c8348a, endColorstr=#33c8348a);
}

While rgba() with CSS3Pie is recommended for cleaner stylesheets, the filter approach remains viable.

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