Learn How To Underline In HTML - BitDegree

Contents

  • 1. HTML Underline: Main Tips
  • 1.1. When to Use u Tag
  • 2. Browser support

HTML Underline: Main Tips

  • HTML underline tag was deprecated in HTML4. However, it was reintroduced with semantic meaning in HTML5.
  • Now it's used to indicate that a span of inline text has a non-textual meaning.
  • This tag supports global attributes.
  • Both starting and ending tags are mandatory.
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When to Use u Tag

While <u> was called HTML underline tag before, it is now officially known as the unarticulated annotation tag. Thus, you shouldn't use it for simple styling purposes. It is meant to indicate non-textual annotations.

When you use the <u> tag, its content receives a simple solid underline in HTML:

Example Copy Here is some <u>underlined</u> text. Try it Live Learn on Udacity

However, you can modify it by using the CSS text-decoration property. In the example below, we will use a red wavy line to indicate a spelling mistake in the text:

Example Copy <style> u { text-decoration: #FF0000 wavy underline; } </style> <body> <p>Good <u>grammer</u> is important.</p> </body> Try it Live Learn on Udacity

If you're simply looking at how to underline text in HTML to make it look bolder, this CSS property is your best option as well.

Note: do not use the <u> tag where it could be confused for a hyperlink.

Browser support

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Edge
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Firefox
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IE
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Mobile browser support

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Firefox
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Tag » How To Underline On Html