We claim the ornamental design for an embossed container, as shown and described.
FIG. 1 is a top perspective view of an embossed container according to the first embodiment;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top perspective view of the embossed container according to a second embodiment; and,
FIG. 4 is a front view of FIG. 3.
The ornamental design which is claimed is shown in solid lines in the drawings. The evenly-sized broken lines consisting of dash-dash lines depict portions of the embossed container that form no part of the claimed design.