diff --git a/ext/alias_editor/theme.php b/ext/alias_editor/theme.php
index b8a72194..c5c2c57a 100644
--- a/ext/alias_editor/theme.php
+++ b/ext/alias_editor/theme.php
@@ -47,10 +47,9 @@ class AliasEditorTheme extends Themelet {
 		}
 		$html = "
 			<table class='zebra'>
-				<thead><th>From</th><th>To</th>$action</thead>
-				$add
-				$h_aliases
-				$add
+				<thead><tr><th>From</th><th>To</th>$action</tr>$add</thead>
+				<tbody>$h_aliases</tbody>
+				<tfoot>$add</tfoot>
 			</table>
 			<p><a href='".make_link("alias/export/aliases.csv")."'>Download as CSV</a></p>
 			<form enctype='multipart/form-data' action='".make_link("alias/import")."' method='POST'>
diff --git a/ext/ext_manager/theme.php b/ext/ext_manager/theme.php
index 5d231e6b..b1d1baf5 100644
--- a/ext/ext_manager/theme.php
+++ b/ext/ext_manager/theme.php
@@ -8,6 +8,7 @@ class ExtManagerTheme extends Themelet {
 					<thead>
 						<tr><th>Enabled</td><th>Name</th><th>Description</th></tr>
 					</thead>
+					<tbody>
 		";
 		$n = 0;
 		foreach($extensions as $extension) {
@@ -26,7 +27,8 @@ class ExtManagerTheme extends Themelet {
 				</tr>";
 		}
 		$html .= "
-					<tr><td colspan='5'><input type='submit' value='Set Extensions'></td></tr>
+					</tbody>
+					<tfoot><tr><td colspan='5'><input type='submit' value='Set Extensions'></td></tr></tfoot>
 				</table>
 			</form>
 		";
diff --git a/themes/default/style.css b/themes/default/style.css
index 911fb7f2..ceb29259 100644
--- a/themes/default/style.css
+++ b/themes/default/style.css
@@ -26,7 +26,6 @@ H3 {
 	padding: 1px;
 }
 THEAD {
-	background: #DEDEDE;
 	font-weight: bold;
 }
 TD {
@@ -54,7 +53,8 @@ TD>SELECT {width: 100%;}
 
 TABLE.zebra {border-spacing: 0px;}
 TABLE.zebra TD, TABLE.zebra TH {vertical-align: middle; padding: 4px;}
-TABLE.zebra THEAD {border-bottom: 2px solid #DDD;}
+TABLE.zebra THEAD TD, TABLE.zebra THEAD TH {border-bottom: 2px solid #CCC;}
+TABLE.zebra TFOOT TD, TABLE.zebra TFOOT TH {border-top: 2px solid #CCC;}
 TABLE.zebra TR {border-bottom: 1px solid #DDD;}
 TABLE.zebra TR.odd {background: #EFEFEF;}
 TABLE.zebra TR.even {background: #E0E0E0;}