FIG. 1 is a top, front, right side perspective view of a child safety seat, showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a top, front, right side perspective view of the child safety seat of FIG. 1, shown in a condition of use.
FIG. 9 is a front elevation view thereof;
FIG. 10 is a rear elevation view thereof;
FIG. 11 is a left side elevation view thereof; and,
FIG. 12 is a right side elevation view thereof.
The broken lines depict portions of the child safety seat that form no part of the claimed design. The broken lines showing a handle in FIG. 8-12 depict environmental subject matter that forms no part of the claimed design.