IE6 article type blurb icon and text has moderate vert. misalignment

[npeterson]

In IE6, on those articles that display an article type blurb icon in the header bar, both the article type text and the icon are moderately misaligned to the top of the bar.

This defect does not impact legibility or functionality.

Review style: div#contentHeader p#articleType {... margin-top:-13px; ...} in screen.css. Maybe make a base style to fix IE6 and then an override style for modern browsers.

[stoomey]

Gave class .replaced a style of position absolute to fix vertical positioning bug in IE6, then used direct decendent selector to reset to static positioning for modern browsers. Also, removed line of confusing line of cruft that had been replaced by general inline image replacement styles.