Help screen column header Width From Joomla! Documentation Revision as of 19:37, 20 March 2013 by Wilsonge (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Width. Width of the iFrame Window. Enter in a number of pixels or enter in a percentage (%). For example, "550" means 550 pixels. "75%" means 75% of the page width.