FIG. 1 is a perspective view of a tab for a container lid embodying our new design;

FIG. 2 is a top plan view of the tab;

FIG. 3 is a bottom plan view of the tab;

FIG. 4 is a first side view of the tab; and,

FIG. 5 is a second side view of the opposite side of the tab shown in FIG. 4.

The broken line showing is for illustrative purposes only and forms no part of the claimed design.