diff --git a/webserver.py b/webserver.py
index fea0f14..d743f22 100755
--- a/webserver.py
+++ b/webserver.py
@@ -348,7 +348,6 @@ content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale
 <style>
 th {
   text-align: left;
-  background-color: #cccccc;
 }
 a {
   text-decoration: none;
@@ -364,7 +363,7 @@ a {
         if text == prevtitle[0]:
             return False
         prevtitle[0] = text
-        out.append(f'<tr><td colspan=3><b>{text}</b></td></tr>')
+        out.append(f'<tr><td colspan=3><h3>{text}</h3></td></tr>')
         return True
 
     # TODO: sort this by (instrument / device) and list dates
@@ -400,7 +399,7 @@ a {
                 else:
                     daterange = f'since {begdate}'
                 if change_title('currently running'):
-                    out.append('<tr><td>instrument</td><td>history only</td><td></td></tr>')
+                    out.append('<tr><th>instrument</th><th>history only</th><td></td></tr>')
             else:
                 history_only = True
                 remote = None
@@ -414,9 +413,9 @@ a {
             link = f'<a href="/?{"&".join(args)}">'
             label = " ".join(devices)
             if remote:
-                out.append(f'<tr><th><a href="{remote}">{ins.upper()}</a></th><th>{link}{label}</a></th>')
+                out.append(f'<tr><td><a href="{remote}">{ins.upper()}</a></td><td>{link}{label}</a></td>')
             else:
-                out.append(f'<tr><th colspan=2>{link}{key[1]}&nbsp;{label}</a></th>')
+                out.append(f'<tr><td colspan=2>{link}{key[1]}&nbsp;{label}</a></td>')
             out.append(f'<td>{daterange}</td></tr>')
         if timerange:
             out.append(f'<h3><a href="/select_experiment?time=all">earlier dates</a></h3><br>')