Effect of display: none on Child Elements in CSS
When a parent element has display: none, the parent and all of its child elements are completely removed from the layout and rendering flow. They occupy no space and are not visible or interactive.
Child elements are hidden along with the parent; their visibility cannot be toggled independently while the parent is
display: none.The entire subtree of elements under the parent is ignored by the browser for layout, painting, and events.
CSS applied to child elements has no visual effect while the parent is
display: none.Elements removed by
display: noneare also inaccessible to assistive technologies like screen readers.
In this example, the <p> and <span> inside the hidden <div> are completely removed from the layout. Only the paragraph outside the hidden parent is visible and takes up space.
Use
display: noneto completely remove elements when they should not occupy space or participate in layout.Do not rely on child elements being visible or interactive while the parent is
display: none.For temporarily hiding content while preserving layout space, use
visibility: hiddeninstead.