positive look behind: it does not consume the first character, so it can be used for the next match flags=re.I is to ignore case sensitive

Example [class*="container"] → .container

".\w?":".\w?"

This regex validates zipcode for India Valid examples 412003 412 003 ...

Parse les numéros d'article, avec le préfixe éventuel de niveau Ex : D101, A.202, R*203,R. * 102-36

This matches content between two characters ie. height: 400px; matches between : and ;