This paragraph will contain some keywords, which will have added shading and a larger margin around them. You will see that the left and right of these elements are spread wider than other words.

Each keyword also has a background-color property set to illustrate where the edge of the elment is and enhance the effect of the margin.

Between each paragraph there is also a top and bottom margin, although only the top one will show between paragraphs because of the smaller vertical margin collapsing into the larger one.