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 | This page in a nutshell: Tables in class wikitable or infobox, wider than 98%, trigger bottom scroll bars. Use margin-right:0 or infobox margin-left:0 to avoid the scrollbar and allow full width. IMPACT: thousands of articles. |
The 98 percent table width anomaly is an issue of some tables (since 2008, as of May 2012) with class=wikitable or class=infobox triggering the bottom scroll bar when width is set above 98%. The over-wide display has been caused by automatic extra-margin padding, as either: wider margin-right for class=wikitable, or wider margin-left for infoboxes. This issue is about the top-level tables on a page, not about tables (with width=100%) inside other tables. Perhaps the full-name of the essay could be: "98-percent table-width anomaly triggering bottom scroll-bars for top-level, CSS-class tables". The problem does not occur for other tables, without the keyword "class=". For "class=wikitable" the addition of style="margin-right:0" allows a table to fill the current width of the reader's window, and bypass the 98% width limitation.