How Can I Make CSS Rules Visible Only in Opera Browsers?

Customizing CSS Visibility for Opera

CSS (Cascading Style Sheets) can be used to style web pages, but sometimes you may want to apply specific styles only to certain browsers, such as Opera. Here's how you can make CSS rules visible exclusively to Opera browsers:

To make a CSS rule visible only for Opera, use the -o-prefocus selector. This selector is supported by Opera browsers and can be used to target specific elements or classes. For example:

noindex:-o-prefocus, .class {
  color:#fff;
}

This rule will hide the class .class for all browsers except Opera, where the color of the elements with that class will be changed to white. This selector is compatible with Opera 10.63 and later versions.

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