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HomeWeb Front-endCSS TutorialHow Do I Style Links Starting With a Specific Prefix Using CSS Attribute Selectors?

How Do I Style Links Starting With a Specific Prefix Using CSS Attribute Selectors?

Understanding CSS Attribute Selector: a[href^="..."]

In CSS, you can use attribute selectors to style elements based on the values of their attributes. One specific attribute selector is a[href^="..."]. Let's break down its components:

  • a: This selects all elements with the tag (anchor tags).
  • href: This specifies the href attribute, which contains the destination URL for links created by anchor tags.
  • ^=: This is the attribute value operator "starts with."
  • "http:": This is the value that the href attribute should start with.

How Does It Work?

The a[href^="http:"] selector matches all anchor tags whose href attribute value begins with "http:". This typically includes most external links referencing websites on the internet.

For example, consider the following CSS:

a[href^="http:"] {
   background: url(img/keys.gif) no-repeat right top;
}

This CSS rule will apply a specific background image and position to all links that start with "http:".

Advanced Usage:

You can also use multiple attribute selectors with the same attribute, as shown in the example you provided:

a[href^="http://mysite.com"], a[href^="http://www.mysite.com"] {
   background-image: none; padding-right:0;
}

This rule targets all links starting with "http://mysite.com" or "http://www.mysite.com" and removes their background image and sets their padding to zero. This allows you to customize the appearance of external links within your own website while leaving other external links unaffected.

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