Verify width and height attributes for IMG and OBJECT
Test for assertions 13.7.1-1 and 13.7.1-2

There shall be a PNG image with height of 100 pixels and width of 100 pixels following this sentence.

PNG image

There shall be a PNG image with height of 50 pixels and width of 50 pixels following this sentence.

There shall be a PNG image with height of 100 pixels and width of 50 pixels following this sentence.

PNG image with width and height specified

There shall be a PNG image with height of 100 pixels and width of 50 pixels following this sentence.