Revert "ajout classes title"

This reverts commit 4615ca353ffe7de22c60ff6823e266071676bae3.
Revert "Sauvetage Olivier"

This reverts commit bc5d51afb3d66e57fa7ae8d67ca70519454ef178.
Revert "tet"

This reverts commit 5477a0ddfc2d894d0f682e79a23547fc6353b451.