Remove the HTML title= attributes which harmed accessibility and

violated the principle of separation of content and presentation.
Instead, implement the tooltips purely in CSS.
Thanks to John Gardner <gardnerjohng at gmail dot com> for
suggesting most of the styling in the new ::before rules.

6 files changed, 18 insertions, 19 deletions

diff --git a/regress/man/IP/literal.out_html b/regress/man/IP/literal.out_html
index ae90758b..844eb1dd 100644
--- a/regress/man/IP/literal.out_html
+++ b/regress/man/IP/literal.out_html
@@ -24,7 +24,7 @@ literal
 paragraph
 </pre>
 regular text
-<h2 class="Ss" title="Ss" id="literal_into_indented_paragraph"><a class="permalink" href="#literal_into_indented_paragraph">literal
+<h2 class="Ss" id="literal_into_indented_paragraph"><a class="permalink" href="#literal_into_indented_paragraph">literal
   into indented paragraph</a></h2>
 regular text
 <pre>
@@ -42,7 +42,7 @@ text
     indented regular text</dd>
 </dl>
 <p class="Pp">new regular paragraph</p>
-<h2 class="Ss" title="Ss" id="literal_out_of_indented_paragraph"><a class="permalink" href="#literal_out_of_indented_paragraph">literal
+<h2 class="Ss" id="literal_out_of_indented_paragraph"><a class="permalink" href="#literal_out_of_indented_paragraph">literal
   out of indented paragraph</a></h2>
 regular text
 <dl class="Bl-tag">
diff --git a/regress/man/SH/paragraph.out_html b/regress/man/SH/paragraph.out_html
index 5aef80e2..49627f19 100644
--- a/regress/man/SH/paragraph.out_html
+++ b/regress/man/SH/paragraph.out_html
@@ -1,6 +1,6 @@
 BEGINTEST
-<h1 class="Sh" title="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
 This text immediately follows a section header.
 <p class="Pp">This is a paragraph.</p>
-<h1 class="Sh" title="Sh" id="EXAMPLES"><a class="permalink" href="#EXAMPLES">EXAMPLES</a></h1>
+<h1 class="Sh" id="EXAMPLES"><a class="permalink" href="#EXAMPLES">EXAMPLES</a></h1>
 ENDTEST
diff --git a/regress/man/SS/paragraph.out_html b/regress/man/SS/paragraph.out_html
index e36f2a06..bc803f86 100644
--- a/regress/man/SS/paragraph.out_html
+++ b/regress/man/SS/paragraph.out_html
@@ -1,8 +1,8 @@
 BEGINTEST
-<h2 class="Ss" title="Ss" id="First_subsection"><a class="permalink" href="#First_subsection">First
+<h2 class="Ss" id="First_subsection"><a class="permalink" href="#First_subsection">First
   subsection</a></h2>
 This text immediately follows a subsection header.
 <p class="Pp">This is a paragraph.</p>
-<h2 class="Ss" title="Ss" id="Second_subsection"><a class="permalink" href="#Second_subsection">Second
+<h2 class="Ss" id="Second_subsection"><a class="permalink" href="#Second_subsection">Second
   subsection</a></h2>
 ENDTEST
diff --git a/regress/man/SY/literal.out_html b/regress/man/SY/literal.out_html
index b1f378cf..5daf74ef 100644
--- a/regress/man/SY/literal.out_html
+++ b/regress/man/SY/literal.out_html
@@ -3,7 +3,7 @@ BEGINTEST
 initial regular text
 <table class="Nm">
   <tr>
-    <td><code class="Nm" title="Nm">command</code></td>
+    <td><code class="Nm">command</code></td>
     <td><i>arguments</i></td>
   </tr>
 </table>
@@ -14,7 +14,7 @@ before display
 </pre>
 <table class="Nm">
   <tr>
-    <td><code class="Nm" title="Nm">command</code></td>
+    <td><code class="Nm">command</code></td>
     <td>
     <pre>
 <i>arguments</i>
diff --git a/regress/mdoc/Rs/paragraph.out_html b/regress/mdoc/Rs/paragraph.out_html
index 19e9362c..ab2575e5 100644
--- a/regress/mdoc/Rs/paragraph.out_html
+++ b/regress/mdoc/Rs/paragraph.out_html
@@ -1,17 +1,16 @@
 BEGINTEST
 <br/>
-initial reference: <cite class="Rs" title="Rs"><span class="RsA">author
-  name</span>, <i class="RsB">book title</i>.</cite>
-<p class="Pp">in a paragraph:
-    <cite class="Rs" title="Rs"><span class="RsA">another author</span>,
-    <i class="RsB">another book</i>.</cite></p>
-<h1 class="Sh" title="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+initial reference: <cite class="Rs"><span class="RsA">author name</span>,
+  <i class="RsB">book title</i>.</cite>
+<p class="Pp">in a paragraph: <cite class="Rs"><span class="RsA">another
+    author</span>, <i class="RsB">another book</i>.</cite></p>
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
   ALSO</a></h1>
 initial reference:
-<p class="Pp"><cite class="Rs" title="Rs"><span class="RsA">author name</span>,
+<p class="Pp"><cite class="Rs"><span class="RsA">author name</span>,
     <i class="RsB">book title</i>.</cite></p>
 <p class="Pp">in a paragraph:</p>
-<p class="Pp"><cite class="Rs" title="Rs"><span class="RsA">another
-    author</span>, <i class="RsB">another book</i>.</cite></p>
+<p class="Pp"><cite class="Rs"><span class="RsA">another author</span>,
+    <i class="RsB">another book</i>.</cite></p>
 <pre>
 ENDTEST
diff --git a/regress/mdoc/Sh/paragraph.out_html b/regress/mdoc/Sh/paragraph.out_html
index 3eeb9fe8..7d4f0d40 100644
--- a/regress/mdoc/Sh/paragraph.out_html
+++ b/regress/mdoc/Sh/paragraph.out_html
@@ -1,7 +1,7 @@
 BEGINTEST
 <p class="Pp">descriptive text</p>
-<h2 class="Ss" title="Ss" id="Subsection"><a class="permalink" href="#Subsection">Subsection</a></h2>
+<h2 class="Ss" id="Subsection"><a class="permalink" href="#Subsection">Subsection</a></h2>
 initial subsection text
 <p class="Pp">subsection paragraph</p>
-<h1 class="Sh" title="Sh" id="EXAMPLES"><a class="permalink" href="#EXAMPLES">EXAMPLES</a></h1>
+<h1 class="Sh" id="EXAMPLES"><a class="permalink" href="#EXAMPLES">EXAMPLES</a></h1>
 ENDTEST