HTML5
If you need to highlight the text of a section of an HTML document, you can use the hashtag, for example, in the following example, we highlight the word "milk":Browser support
Internet Explorer 9 Plus, Firefox, Opera, Chrome, and Safari support the hashtag.
Note: Internet Explorer 8 and earlier versions do not support the label.
Label definition and instructions for use
Labels define marked text.
Use the slt;mark> label when you need to highlight the text.
Tip: Although you can do the same with labels, labels, and labels, their effect is to emphasize text, not just highlight text, so we don't recommend it.
The difference between HTML 4.01 and HTML5
The new HTML5 label.
Global properties
The label supports global properties and views the full property sheet HTML global properties.
The event property
Labels support all HTML event properties.