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<length-percentage> - CSS | MDN
Se référer à la documentation des types <length>
et <percentage>
pour plus de détails sur les syntaxes possibles pour chacun de ces types.
Lorsqu'une valeur de type <length-percentage>
peut être utilisée dans une déclaration, cela signifie que le pourcentage sera résolu comme une longueur et qu'il peut alors être utilisé au sein d'une expression calc()
. Ainsi, toutes les valeurs qui suivent sont acceptables pour la propriété width
:
width: 200px;
width: 20%;
width: calc(100% - 200px);