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Asked: 2026-05-11T13:18:35+00:00

In using CSS is it best practice to use a div id only once

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In using CSS is it best practice to use a div id only once per page. I know each id has to be unique but could be used multiple times. A discussion with my development team and it came up that one person was under the impression that you could only use the div id tag once per page.

Example of 1 id per page:

<page>   <div id='test'>Some Text</div>   <div class='test12'>More Text</div> </page>

Example of multiple id’s per page:

<page>   <div id='test'>Some Text</div>   <div id='test12'>More Text</div> </page>

I hope that’s clear enough. If not let me know and I can try to explain it better.

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1 Answer

  1. You can certainly use the id=” attribute as many times as you need, but the contents of the attribute should be unique. Not having a unique value is a HTML error.

    If you need multiple items to have the same attribute, then you can set them as a class.

    More info is at the W3C – Element identifiers: the id and class attributes (the HTML 4.01 Specification).

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