diff --git a/asciidoc/pve-html.conf b/asciidoc/pve-html.conf
index 4c202f7..ba1a7d0 100644
--- a/asciidoc/pve-html.conf
+++ b/asciidoc/pve-html.conf
@@ -588,12 +588,34 @@ endif::linkcss[]
 ifdef::toc2[]
 <style type="text/css">
 div #toc {
-    width: 19em
+    width: 19em;
+    font-family: sans;
 }
-
 .book {
     margin-left: 22em
 }
+div #toc a:link, div #toc a:visited {
+    color: black;
+    text-decoration: none;
+}
+div #toc a:hover {
+    text-decoration: underline;
+}
+div .toclevel1 {
+    font-size: 1.1em;
+    margin-bottom: 0.3em;
+}
+@media only screen and (min-width: 85em) {
+div #toc {
+    width: 22em
+}
+.book {
+    margin-left: 25em
+}
+div .toclevel1 {
+    font-size: 1.2em;
+}
+}
 </style>
 endif::toc2[]