What is the CSS property used to control the visibility of an element?Optionsdisplayhiddenopacityvisibility

Breaking Down the Problem

We need to identify which CSS property is specifically used to control the visibility of an element from the provided options.

Relevant Concepts

1. display: This property controls the display behavior of an element but does not specifically control visibility. For instance, display: none; removes an element from the document flow.

2. hidden: This is not a CSS property but rather an attribute in HTML that can be used to hide elements. CSS does not have a direct property named "hidden".

3. opacity: This property is used to control the transparency of an element. While an element can be made invisible by setting opacity: 0;, it still occupies space in the layout.

4. visibility: This property directly determines whether an element is visible or not. When set to visibility: hidden;, the element is not visible, but it still occupies space in the layout.

Analysis and Detail

• display: Use for removing an element from layout entirely.
• hidden: Attribute, not a property.
• opacity: Affects transparency, not visibility in terms of layout.
• visibility: Specifically used for controlling basic visibility.

Verify and Summarize

The property that directly controls the visibility of an element while maintaining its space in the layout is visibility.

Final Answer

The correct answer is visibility.