This is a slightly more radical reversion of the eBay search formatting to an earlier state. The left-hand sidebar menu (category browser) is narrower with original font size and the annoying animated ad spaces on top and left sides have been vanished. Grayed-out text (subtitles etc) is returned to solid black. Alternating item list rows are shaded and links are underlined.
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30 Aug 2007: To eliminate the bright yellow background on the sidebar and top searchbox, add these lines to your style:

#matchcats .matchcatecontent {background-color: #efefef !important;}
#basicsearch div {background-color: #fff !important;}
#buyingguides .buyingguidescontent {background-color: #efefef !important;}
#searchoptions #srchOpsDiv {background-color: #efefef !important;}
#productfinder {background-color: #efefef !important;}

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04 Sept 2007: To eliminate the yellow searchbar gradient, add these lines:

#searchtabs {background-image: none !important; list-style-image