如何完全隱藏元素而不佔空間？

Hiding Elements without Occupying Space

When concealing elements using visibility:hidden, they remain reserved on the page, even though they are invisible. To achieve a complete visual disappearance, emulate their absence by removing them from view altogether without modifying the DOM.

Optimal Solution: Utilizing display:none

To render elements visually imperceptible, employ the display:none property. This method effectively eliminates their presence in the viewport, unlike visibility:hidden, which maintains their spatial allocation.

To conceal an element:

element.style.display = 'none';

To reveal the element:

element.style.display = 'block';

By utilizing display:none, elements vanish from sight and do not reserve any space in the layout, achieving the desired effect of complete visual disappearance.

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