Cannot get css width working for MS outlook

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I want text in a paragraph to be 100 px in width.I try:\[code\]<p style="width:120px">This is some text in a paragraph. This is some text in a paragraph.This is some text in a paragraph. This is some text in a paragraph.This is some text in a paragraph. This is some text in a paragraph.</p>\[/code\]Outlook ignores the width.Any idea how to get width working in outlook?