diff --git a/include/adding-tracks-busses-and-vcas.html b/include/adding-tracks-busses-and-vcas.html
index 94c29e1..58dfa15 100644
--- a/include/adding-tracks-busses-and-vcas.html
+++ b/include/adding-tracks-busses-and-vcas.html
@@ -74,7 +74,7 @@
 <tr>
   <th>Record mode</th>
   <td>This option is only available for audio tracks and affects how it behaves
-  when recording. See <a href="@@track-types#trackmodes">Track Modes</a> for
+  when recording. See <a href="@@track-modes">Track Modes</a> for
   details.</td>
 </tr>
 <tr>
diff --git a/include/loudness-analyzer.html b/include/loudness-analyzer.html
index 14b3d1a..61e1de8 100644
--- a/include/loudness-analyzer.html
+++ b/include/loudness-analyzer.html
@@ -7,7 +7,7 @@
 <p>
   It is enabled by checking
   <kbd class="option">Enable master-bus output gain control</kbd> in the 
-  <a href="@@preferences#preferences-mixer">Preferences</a>.
+  <a href="@@preferences#preferences-signal_flow">Preferences</a>.
   The <a href="@@master-bus-strip">Master Bus strip</a> then shows a <kbd class="menu">LAN</kbd>
   button to start the analysis, and a volume slider that is the global gain
   that can be set either manually or by the loudness normalizer.
diff --git a/include/osc58-controlling-ardour-with-osc.html b/include/osc58-controlling-ardour-with-osc.html
index 239e01e..a46d80d 100644
--- a/include/osc58-controlling-ardour-with-osc.html
+++ b/include/osc58-controlling-ardour-with-osc.html
@@ -18,34 +18,34 @@
 </p>
 <ul>
   <li>
-	<a href="#set-up">Control Surface Set</a>
+	<a href="#osc_set-up">Control Surface Set</a>
   </li>
   <li>
-	<a href="#global">Master or Global messages</a>
+	<a href="#osc_global">Master or Global messages</a>
   </li>
   <li>
-	<a href="#transport">Transport Control</a>
+	<a href="#osc_transport">Transport Control</a>
   </li>
   <li>
-	<a href="#recording">Recording control</a>
+	<a href="#osc_recording">Recording control</a>
   </li>
   <li>
-	<a href="#information">Transport Information</a>
+	<a href="#osc_information">Transport Information</a>
   </li>
   <li>
-	<a href="#editing">Editing-related</a>
+	<a href="#osc_editing">Editing-related</a>
   </li>
   <li>
-	<a href="#Master-strip">Master and Monitor strip control</a>
+	<a href="#osc_Master-strip">Master and Monitor strip control</a>
   </li>
   <li>
-    <a href="#strips">Track specific operations</a>
+    <a href="#osc_strips">Track specific operations</a>
   </li>
   <li>
-    <a href="#select">Selected Strip Operations</a>
+    <a href="#osc_select">Selected Strip Operations</a>
   </li>
   <li>
-    <a href="#menu">Menu actions</a>
+    <a href="#osc_menu">Menu actions</a>
   </li>
 </ul>
 <p>
@@ -82,7 +82,7 @@ here</em>"/&gt;</kbd>
   OSC feedback In Ardour.</a>
 </p>
 
-<h2 id="set-up">Control Surface Set Up</h2>
+<h2 id="osc_set-up">Control Surface Set Up</h2>
 
 <p>
   Control surface set up allows the controller to tell Ardour about its
@@ -306,9 +306,9 @@ here</em>"/&gt;</kbd>
 	href="@@osc58-parameter-types">
 	Parameter Types in OSC.</a>
 </p>
-<h3 id="global">Master or Global messages</h3>
+<h3 id="osc_global">Master or Global messages</h3>
 
-<h4  id="transport">Transport Control</h4>
+<h4  id="osc_transport">Transport Control</h4>
 <table class="dl">
   <tr><th><kbd class="osc">/transport_stop</kbd></th>
   <td>Stops a rolling transport</td></tr>
@@ -376,7 +376,7 @@ here</em>"/&gt;</kbd>
   OSC Jog Modes</a></td></tr>
 </table>
 
-<h4 id="recording">Recording control</h4>
+<h4 id="osc_recording">Recording control</h4>
 <table class="dl">
   <tr><th><kbd class="osc">/toggle_punch_in</kbd></th>
   <td></td></tr>
@@ -386,7 +386,7 @@ here</em>"/&gt;</kbd>
   <td>Toggles master record enable</td></tr>
 </table>
 
-<h4 id="information">Transport Information</h4>
+<h4 id="osc_information">Transport Information</h4>
 <table class="dl">
   <tr><th><kbd class="osc">/transport_frame</kbd></th>
   <td>Ardour sends /transport_frame <em>current_frame</em></td></tr>
@@ -396,7 +396,7 @@ here</em>"/&gt;</kbd>
   <td>Ardour sends /record_enabled <em>recordenable_status</em></td></tr>
 </table>
 
-<h4 id="editing">Editing-related</h4>
+<h4 id="osc_editing">Editing-related</h4>
 <table class="dl">
   <tr><th><kbd class="osc">/undo</kbd></th>
   <td></td></tr>
@@ -409,7 +409,7 @@ here</em>"/&gt;</kbd>
   <td>Set session name to <em>new_name</em> (if new_name is legal and unique)</td></tr>
 </table>
 
-<h4 id="Master-strip">Master and Monitor strip control</h4>
+<h4 id="osc_Master-strip">Master and Monitor strip control</h4>
 <table class="dl">
   <tr><th><kbd class="osc">/master/gain <em>dB</em></kbd></th>
   <td>dB is a float indicating the desired gain in dB</td></tr>
@@ -439,7 +439,7 @@ here</em>"/&gt;</kbd>
   <td>state is an int of 0 or 1 where 1 is mono mode</td></tr>
 </table>
 
-<h3 id="strips">Track specific operations</h3>
+<h3 id="osc_strips">Track specific operations</h3>
 <p>
   For each of the following, <em>ssid</em> is the Surface Strip ID for the track
 </p>
@@ -476,7 +476,7 @@ here</em>"/&gt;</kbd>
   <tr><th><kbd class="osc">/strip/spill <em>ssid</em></kbd></th>
   <td> Use strips this strip is grouped with or those that feed this bus
   (if this strip is a bus) or that this vca (if this is a VCA) controls.
-  See <a href="#spill">Spill Strips</a> for more details</td></tr>
+  See <a href="#osc_spill">Spill Strips</a> for more details</td></tr>
   <tr><th><kbd class="osc">/strip/hide <em>ssid</em> <em>y/n</em></kbd></th>
   <td>Where <em>y/n</em> = 1 hide this strip, 0 for show this track.
   <a href="@@osc58-feedback-and-strip-types-values#hidden">
@@ -485,7 +485,7 @@ here</em>"/&gt;</kbd>
   <td>where <em>strip_name</em> is a string representing the desired name for the strip</td></tr>
   <tr><th><kbd class="osc">/strip/group <em>ssid</em> <em>group_name</em></kbd></th>
   <td>where <em>group_name</em> is a string representing the name of the group desired.
-  See <a href="#groups">groups</a> for more details</td></tr>
+  See <a href="#osc_groups">groups</a> for more details</td></tr>
   <tr><th><kbd class="osc">/strip/mute <em>ssid</em> <em>mute_st</em></kbd></th>
   <td>where <em>mute_st</em> is a bool/int representing the desired mute state of the track</td></tr>
   <tr><th><kbd class="osc">/strip/solo <em>ssid</em> <em>solo_st</em></kbd></th>
@@ -558,7 +558,7 @@ here</em>"/&gt;</kbd>
   <tr><th><kbd class="osc">/strip/name <em>ssid</em> <em>name</em></kbd></th>
   <td>where <em>name</em> is a string for the desired name of the track</td></tr>
 </table>
-<h3 id="select">Selected Strip Operations</h3>
+<h3 id="osc_select">Selected Strip Operations</h3>
 <p>
   New for Ardour 5, A whole set of operations that work on the selected
   or expanded strip.
@@ -611,7 +611,7 @@ here</em>"/&gt;</kbd>
   <td>where <em>comment</em> is a string representing the desired comment for the strip</td></tr>
   <tr><th><kbd class="osc">/select/group <em>group_name</em></kbd></th>
   <td>where <em>group_name</em> is a string representing the name of the group desired.
-  See <a href="#groups">groups</a> for more details</td></tr>
+  See <a href="#osc_groups">groups</a> for more details</td></tr>
   <tr><th><kbd class="osc">/select/group/enable <em>state</em></kbd></th>
   <td>where <em>state</em> is an int representing the desired enable state
   of the group the selected strip is a part of</td></tr>
@@ -687,7 +687,7 @@ here</em>"/&gt;</kbd>
   <tr><th><kbd class="osc">/select/spill</kbd></th>
   <td> show only strips this strip is grouped with or
   those that feed this bus or that this vca controls.
-  See <a href="#spill">Spill Strips</a> for more details</td></tr>
+  See <a href="#osc_spill">Spill Strips</a> for more details</td></tr>
   <tr><th><kbd class="osc">/select/*/automation  <em>mode</em></kbd></th>
   <td>where <em>mode</em> is an int ranging from 0 to 3 representing the desired automation mode for the control.
   <a href="@@osc58-automation">See OSC Automation.</a></td></tr>
@@ -729,7 +729,7 @@ here</em>"/&gt;</kbd>
 	for page up and a switch with a value of <code>-1</code> for page down. An encoder
 	can be used as well. (these commands were added in Ardour version 5.10)
 </p>
-<h4 id="groups">Using groups with strip and select (new for Ardour 6.0)</h4>
+<h4 id="osc_groups">Using groups with strip and select (new for Ardour 6.0)</h4>
 <p class="note">
 	No grouping will occure unless <code>use_group</code> is set either
 	by using <kbd class="osc">/set_surface/strip_types</kbd> with the use groups bit set
@@ -768,7 +768,7 @@ here</em>"/&gt;</kbd>
 	<p>To create a new group from a strip that is already joined to a group,
 	the strip must first remove itself from the current group.
 	</p>
-<h4 id="spill">Spill Strips</h4>
+<h4 id="osc_spill">Spill Strips</h4>
 <p><kbd class="osc">/select/spill</kbd> or <kbd class="osc">/strip/spill</kbd>
 	will:</p>
 	<ul>
@@ -807,7 +807,7 @@ here</em>"/&gt;</kbd>
 	<kbd class="osc">/strip/custom/mode <em>mode</em></kbd>.
 </p>
 
-<h3 id="menu">Menu actions</h3>
+<h3 id="osc_menu">Menu actions</h3>
 <p>
   Every single menu item in Ardour's GUI is accessible via OSC. There is
   a single common syntax to trigger the action as if it was selected
diff --git a/include/other-toolbar-items.html b/include/other-toolbar-items.html
index 9cdedc4..257e6c8 100644
--- a/include/other-toolbar-items.html
+++ b/include/other-toolbar-items.html
@@ -92,7 +92,7 @@
 </ul>
 
 
-<h2 id="mode_selector">The Master Level Meter</h2>
+<h2 id="tb_master_level_meter">The Master Level Meter</h2>
 
 <figure>
 	<img alt="The Master Level Meter" src="/images/master-level-meter.png">
@@ -107,7 +107,7 @@
   0dB. It can be reset by a <kbd class="mouse">Left</kbd> click.
 </p>
 
-<h2 id="mode_selector">Script/Shortcut buttons</h2>
+<h2 id="tb_script_buttons">Script/Shortcut buttons</h2>
 
 <figure>
 	<img alt="The Script buttons" src="/images/script-buttons.png">
diff --git a/source/css/pdf.css b/source/css/pdf.css
index a8d1cc1..765f970 100644
--- a/source/css/pdf.css
+++ b/source/css/pdf.css
@@ -42,14 +42,12 @@ div.frontcover {
 @page :right {
    @bottom-left {
        margin: 10pt 0 30pt 0;
-       /*border-top: .25pt solid #666;*/
 	   content: "The Ardour Manual";
        font-size: 7pt;
        color: #333;
    }
    @bottom-right {
        margin: 10pt 0 30pt 0;
-       /*border-top: .25pt solid #666;*/
        content: counter(page);
        font-size: 7pt;
    }
@@ -67,14 +65,12 @@ div.frontcover {
 @page :left {
    @bottom-right {
        margin: 10pt 0 30pt 0;
-       /*border-top: .25pt solid #666;*/
 	   content: "The Ardour Manual";
        font-size: 7pt;
        color: #333;
    }
    @bottom-left {
        margin: 10pt 0 30pt 0;
-       /*border-top: .25pt solid #666;*/
        content: counter(page);
        font-size: 7pt;
    }
@@ -94,8 +90,7 @@ div.frontcover {
 }
 
 body {
-	counter-reset: partnum chapternum subchapternum figurenum; /* resets all counters */
-	/*font-family: "Trebuchet MS", "Lucida Grande", "Lucida Sans Unicode", "Lucida Sans", Tahoma, sans-serif;*/
+	counter-reset: partnum chapternum subchapternum subsubchapternum figurenum; /* resets all counters */
 	font-size: 10pt;
 	line-height: 1.25em;
 
@@ -109,7 +104,6 @@ h1, h2 {
 #toc::before { /* the ToC should not count...*/
   content: none;
   counter-reset: partnum;
-  /*counter-increment: partnum -1;*/
 }
 
 h1::before { /* parts */
@@ -127,14 +121,19 @@ h3::before {	/* subchapter */
   content: counter(chapternum) "." counter(subchapternum) " - " ;
 }
 
+h4::before {	/* subsubchapter */
+  counter-increment: subsubchapternum;
+  content: counter(chapternum) "." counter(subchapternum) "." counter(subsubchapternum) " - " ;
+}
+
 figcaption::before {
 	counter-increment: figurenum;
 	content: "Fig. " counter(chapternum) "." counter(figurenum) " - ";
 }
 
 h1 { font-size: 3em; }
-h2 { font-size: 2.25em; counter-reset: subchapternum figurenum; }
-h3 { font-size: 1.75em; }
+h2 { font-size: 2.25em; counter-reset: subchapternum subsubchapternum figurenum; }
+h3 { font-size: 1.75em; counter-reset: subsubchapternum; }
 h4 { font-size: 1.4em; }
 h5 { font-size: 1.2em; }
 h6 { font-size: 1.1em; }
@@ -144,13 +143,18 @@ h1,h2,h3,h4,h5 {
 	page-break-after: avoid;
 	page-break-inside: avoid;
 	line-height: 1.25em;
+	color: darkred;
 }
 
 h1+p, h2+p, h3+p {
 	page-break-before: avoid;
 }
 
-table, figure {
+table {
+	clear: both;
+}
+
+figure {
 	page-break-inside: avoid;
 }