tl;dr : it may be smaller in the SCSS file, but definitely not in the generated CSS file. Do'nt repeat want can be set once. These changes result in roughly 130KB gain in the backend bundle. Follow-up of https://github.com/odoo/odoo/pull/138670 task-3546717 closes odoo/odoo#139683 Signed-off-by: Adrien Dieudonné (adr) <adr@odoo.com> Co-authored-by: stefanorigano (SRI) <sri@odoo.com>