Below this paragraphs there are several elements. They have all been given a 2px solid square border, a content width of 555px, and padding of 20px. Basically, all the boxes should look identical, except that their contents may vary.
Same again, but these are much shorter: their content width is only 55px.
If any of the boxes are too short for the text they contain, the text should overflow! And there should not be any undefined areas....
And note that the attributes should be overridden by the CSS! For more details, see the spec, but basically HTML attributes have a specificity lower than any CSS rules.