The ornamental design for a container, as shown and described.
FIG. 1 is a front elevational view of a container, showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a front, side perspective view.
The diagonally shading lines in FIGS. 1-7, represent a translucent material capable of transmitting diffuse light but without making any details of the features of the design located behind the surfaces visible through the translucent material, as shown in FIG. 7.