Abstract: A container lid engageable with the planar outer edge of a container mouth in overlying sealing relation to the mouth. The lid includes a depending peripheral sealing flange engaged with the container adjacent the mouth, and a top panel with a base surface having a pair of spaced fulcrums seated on the mouth edge. The top panel is divided by the fulcrums into a first major portion and a second minor portion. When the lid seals the container the under or base surface of the major portion parallels the mouth edge with the flange engaged with the container wall completely about the mouth. The minor portion of the top panel of the lid includes an under or base surface upwardly angled or offset from the mouth edge in the sealed position of the lid whereby pressure on the minor portion pivots the lid about the fulcrums and upwardly releases the major portion of the lid and corresponding portion of the flange from the container mouth.