This bug appears only in Explorer 6.
When the font of a page in an iframe is resized, Explorer Windows retains the
line-height of the previous font size.
At the moment of writing QuirksMode.org still uses an old-fashioned 13px as its
main font size definition. For the purpose of this test I gave this page and the one in the
iframe a 0.8em, so that it's possible to resize the text in Explorer Windows.
Try it. Change the overall font size. Both this page and the page in the iframe will react,
but the page in the iframe will retain its old line-height.
After having changed the font size, reload this page. You'll notice that the iframe uses the
correct line-height now.
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