How To Use the HTML5 Mark Element

Updated on October 12, 2020

    Alligator.io and Matt Abrams

    How To Use the HTML5 Mark Element


    mark is a new semantic element that you can use to mark/highlight text that’s relevant to a given context. This tutorial reviews the mark element’s implementation.


    Using the mark Element

    A good example of when one might use the mark elements would be to highlight keywords in search results.

    Let’s say for example that we searched for “dog”:

      Tell your <mark>dog</mark> to behave!

    It’s up to you to style the mark element as you see fit. For example:

    mark {
      background-color: rgba(107, 183, 86, 0.95);
      border-bottom: 2px solid rgb(65, 118, 50);

    This is a basic use case and implementation of the mark tag.


    Note that <mark> is unlike <em> or <strong> in that it doesn’t add importance or emphasis to the highlighted content, which makes its use limited to only a few use cases.

    For a more comprehensive review of the HTML5 markup language, explore our series, How To Build a Website in HTML.

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