Closure cap

The closure lid (1) has a planar lid element (2) with an angled supporting element (4) and an arc-shaped spring clip (9), which projects from the planar cover element. The spring clip has two spaced-apart and obliquely arranged legs (10,11), which are directed from the away side, starting from the lid element. The two legs are joined to one another by a bracket (12). The bracket has M-shaped two outer other legs and two third legs. Each of the latter legs are connected to each of the former legs. An independent claim is included for a closure element.