Display:none vs. Visibility:hidden: When is Performance a Concern?

Performance Implications of Switching from Display:none to Visibility:hidden

In an effort to streamline your web application, you've considered switching from using 'display: none;' to 'visibility: hidden' for hiding elements. While this simplification may seem straightforward, it's crucial to understand the potential performance implications.

Display:none vs. Visibility:hidden

'Display: none;' removes an element from the render tree, meaning it no longer takes up any space on the page. 'Visibility: hidden', on the other hand, hides an element but keeps it in the document flow and allows it to maintain its space.

Browser Performance Impact

Since 'display: none;' elements are not in the render tree, they have no impact on browser performance. 'Visibility: hidden' elements, however, remain in the render tree and are still partially processed by the browser. This means they can occupy space and potentially affect the layout and repainting of the page.

Implications for Your Approach

As you plan to hide around 10 div boxes using 'visibility: hidden', it's important to consider whether the potential performance impact is negligible. If you require the functionality of retaining visibility for these elements (e.g., for fade animations), then 'visibility: hidden' is the appropriate choice.

Recommendation

If you solely need to hide elements for performance reasons, 'display: none;' is the preferred solution. However, if the functionality of 'visibility: hidden' is essential (e.g., controlling opacity), prioritize that functionality and accept the potential performance implications.

The above is the detailed content of Display:none vs. Visibility:hidden: When is Performance a Concern?. For more information, please follow other related articles on the PHP Chinese website!