I applied a margin to an element, but it doesn’t seem to be working. What could be wrong?

This could be due to several factors:

Collapsing margins: Margins on block-level elements can collapse (combine) under certain circumstances. Try using padding instead or apply overflow: hidden to the parent container to prevent collapsing.

Incorrect display property: If the element has a display value of inline, margins won’t apply. Use display: block or display: inline-block to allow margins.