before this commit, In product page specification tags label is not vertially align to it's value. In this commit, fixes the alignment issue by centering the label in website product page. task-3451377 closes odoo/odoo#133812 X-original-commit: 8be036367c9a78fb93ae8e48a3d13f110a3a09bd Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>