Bug ===== Click the `preview` button on the course page. It does not apply the proper styles to the button used for enabled or disabled content previews. Technical =========== With commit https://github.com/odoo/odoo/commit/2d386bc437194b78ea5d446d7b0fa4f5444406e2, the `badge-hide` class used for the `preview` button was replaced and some styles were altered. After this commit ================== The `preview` button is functioning properly. Task-3751285 closes odoo/odoo#156409 X-original-commit: 0dd6eba169b17d02f0b8a2b6fbcd8963db75d292 Signed-off-by: Warnon Aurélien (awa) <awa@odoo.com>