Collapsing Margins: A Closer Look
In this scenario, the overlapping margins of the divs are attributed to a phenomenon known as collapsed margins. When multiple margins adjoin vertically, only the largest margin is applied, eliminating the effect of the smaller margins.
In this case, the div margins are collapsed due to the following:
- The div elements are adjacent and within the same block formatting context.
- No other elements (e.g., line boxes, padding, borders) separate the div elements vertically.
- The div elements have both top and bottom margins.
To resolve this issue, there are several options:
- Enlarge the smaller margin to match the larger margin.
- Reduce the larger margin to allow for spacing.
- Introduce an additional element (e.g., a line break) between the div elements.
It's important to note that float positioning removes elements from the normal flow, eliminating the possibility of margin collapsing.
The above is the detailed content of Why do my Div Margins Collapse and How Can I Fix It?. For more information, please follow other related articles on the PHP Chinese website!

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