This test checks absolute font sizes.

font-family="serif" font-size="xx-small" font-family="serif" font-size="x-small" font-family="serif" font-size="small" font-family="serif" font-size="medium" font-family="serif" font-size="large" font-family="serif" font-size="x-large" font-family="serif" font-size="xx-large" font-family="sans-serif" font-size="xx-small" font-family="sans-serif" font-size="x-small" font-family="sans-serif" font-size="small" font-family="sans-serif" font-size="medium" font-family="sans-serif" font-size="large" font-family="sans-serif" font-size="x-large" font-family="sans-serif" font-size="xx-large" font-family="monospace" font-size="xx-small" font-family="monospace" font-size="x-small" font-family="monospace" font-size="small" font-family="monospace" font-size="medium" font-family="monospace" font-size="large" font-family="monospace" font-size="x-large" font-family="monospace" font-size="xx-large" font-family="cursive" font-size="xx-small" font-family="cursive" font-size="x-small" font-family="cursive" font-size="small" font-family="cursive" font-size="medium" font-family="cursive" font-size="large" font-family="cursive" font-size="x-large" font-family="cursive" font-size="xx-large" font-family="fantasy" font-size="xx-small" font-family="fantasy" font-size="x-small" font-family="fantasy" font-size="small" font-family="fantasy" font-size="medium" font-family="fantasy" font-size="large" font-family="fantasy" font-size="x-large" font-family="fantasy" font-size="xx-large"