Opacity:0 vs. Visibility:hidden: What are the Key Differences in Layout, Events, and Tab Order?

Opacity:0 vs. Visibility:hidden - Distinct CSS Properties

While both opacity:0 and visibility:hidden render elements invisible, they have distinct effects on layout and element behavior. In other words, they do not fully deprecate the visibility property.

Key Differences:

• Layout: Opacity:0 preserves the element's space in the layout, while visibility:hidden collapses it.
• Events: Opacity:0 allows the element to respond to events (e.g., clicks, keypresses), while visibility:hidden prevents this.
• Tab Order: Opacity:0 maintains the element's position in the tab order, while visibility:hidden removes it.

Comparison Table:

Property	Collapse	Events	Tab Order
Opacity: 0	No	Yes	Yes
Visibility: hidden	No	No	No
Visibility: collapse	Yes*	No	No
Display: none	Yes	No	No

(* Yes within table elements, No otherwise)

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