What purpose does the asterisk have in CSS?

Similar Question:
Understanding the star-preceded property in CSS

I recently came across a CSS file for a jQuery script and discovered the following code snippet:

.usual div {
  *margin-top:-15px;
  clear:left;
  background:snow;
  font:10pt Georgia;
}

Can someone explain the purpose of the asterisk/star sign in this context?

Answer №1

Here's a workaround specifically designed for older versions of Internet Explorer (IE7 and below). This CSS rule may be invalid for other browsers, but it will work as intended for the targeted versions.

Answer №2

This trick is a workaround to adjust the positioning for specific versions of Internet Explorer.

According to the CSS standard, properties with certain characters preceding their names should be ignored, but some versions of Internet Explorer do not follow this rule. Some examples include:

  • *someproperty: somevalue - Affects IE7 and earlier versions
  • _someproperty: somevalue - Affects IE6 and earlier versions
  • #someproperty: somevalue - The specific impact is unclear, but likely similar to using *.

Instead of using these hacks, it is recommended to use conditional comments for better compatibility.

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