table.tablesorter .even{background-color:#3d3d3d}table.tablesorter .odd{background-color:#6e6e6e}table.tablesorter .header{background-image:url(../Images/bg.png);background-repeat:no-repeat;background-position:0 50%;padding-left:18px}table.tablesorter .headerSortUp{background-image:url(../Images/asc.png);background-repeat:no-repeat}table.tablesorter .headerSortDown{background-image:url(../Images/desc.png);background-repeat:no-repeat}.offscreen{position:absolute;left:-10000px}#contrast-solution .header:focus,#contrast-solution .header:hover{background-color:#ccc}