Testcase for resizing elements that depend on containing block width

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This is an inline-block that contains enough text that its shrink-wrap width will be based on the available size in its container. Blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah.
This is a fieldset that contains enough text that its shrink-wrap width will be based on the available size in its container. Blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah.
text in a span
text in a span