Understanding display: none in CSS
When you set display: none on an element, it is completely removed from the document’s layout flow. This means it does not take up any space on the page, and other elements behave as if it doesn’t exist.
The element becomes invisible and occupies no space in the layout.
It is not accessible for user interactions like clicking or hovering.
Child elements of the hidden element are also not rendered.
The element can be made visible again by changing its display property (e.g.,
display: blockordisplay: inline).display: noneis different fromvisibility: hidden, which hides the element but still reserves its layout space.
In this example, the second paragraph is not rendered on the page at all. The third paragraph moves up immediately after the first one, as if the hidden element doesn’t exist.
Use
display: nonefor toggling visibility dynamically with JavaScript (e.g., dropdowns, modals).Avoid using
display: noneto hide content important for accessibility — screen readers won’t detect it.If you need the element hidden but still occupying space, use
visibility: hiddeninstead.