A container lid and a container are provided. A container lid for sleeving on a drink bottle, comprising an annulus-shaped lid body and a flexible snap ring, and the lid body includes a pilot hole, which penetrates through the lid body; the flexible snap ring comprises an assembly portion and a clamping portion, wherein the assembly portion encircles around an outer surface of the lid body, and a part of the flexible snap ring is extended along a radial direction of the lid body to define the clamping portion, and the clamping portion is capable of penetrating through the pilot hole from the outer surface of the lid body, and abutting against an outer surface of the drink bottle.