none, box
block (The element is displayed as a block-level element (like paragraphs and headers))
inline (This is default. The element is displayed as an inline-level element (like span))
inline-block (The element is placed as an inline element (on the same line as adjacent content), but it behaves as a block element)
list-item (The element is displayed as a list-item, which means that it has a bullet in front of it)

Test 1 : Classique

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Test 2 : pas de overflow du bloc-2

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