fix issue with filetable background

apps/files/css/files.css

@@ -75,7 +75,7 @@
 	color:#888; text-shadow:#fff 0 1px 0;
 }
 #filestable { position: relative; top:37px; width:100%; }
-#filestable tbody tr { background-color:#fff; height:2.5em; }
+tbody tr { background-color:#fff; height:2.5em; }
 tbody tr:hover, tbody tr:active {
 	background-color: rgb(240,240,240);
 }