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HomeWeb Front-endCSS TutorialOpacity:0 vs. Visibility:hidden: When Should You Use Which CSS Property?

Opacity:0 vs. Visibility:hidden: When Should You Use Which CSS Property?

Distinguishing Opacity:0 from Visibility:Hidden

In web development, manipulating the visibility of elements is essential. Two commonly used CSS properties for this purpose are opacity and visibility. While opacity:0 seemingly achieves the same result as visibility:hidden, they exhibit key differences.

Opacity:0

Setting the opacity property to 0 makes an element fully transparent. While the element becomes invisible, it:

  • Does not collapse the occupied space, retaining its size in the layout.
  • Responds to events such as clicks and key presses.
  • Remains in the taborder, allowing users to access it with the tab key.

Visibility:hidden

Unlike opacity:0, visibility:hidden does not affect an element's transparency. Instead, it:

  • Collapses the space where the element would normally reside.
  • Prevents event handling, rendering the element unresponsive to user interactions.
  • Excludes the element from the taborder.

Implications for Deprecating Visibility

While visibility:hidden and opacity:0 share the commonality of hiding elements, they have distinct effects on layout and interaction. Opacity:0 allows for disappearing elements without disrupting the flow or functionality, making visibility:hidden less desirable in most scenarios.

Comparative Table

The table below summarizes the key differences between opacity:0 and visibility:hidden:

Property Collapse Events Taborder
opacity:0 No Yes Yes
visibility:hidden No No No

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