This is an HTML / CSS / Bootstrap exercice made for the Montreuil - Promo 5.
Try to fix the bad.xhtml file, the solution is the good.html file.
You will also need the carousel.css file, and the purpose is of course to customize the obtained template.
This gist show diffs between the two files: https://gist.github.com/yvan-sraka/3388cd39e6207e8ce523/revisions