docs/llvm.css: Introduce cascading style <div> and <p> continued on <h[2-5]>. For now, it is applied in AliasAnalysis.html and ReleaseNotes.html.

<h2>Section Example</h2>
<div> <!-- h2+div is applied -->
<p>Section preamble.</p>

<h3>Subsection Example</h3>
<p> <!-- h3+p is applied -->
Subsection body
</p>

<!-- End of section body -->
</div>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129901 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/llvm.css b/docs/llvm.css
index 846de2e..1222cf1 100644
--- a/docs/llvm.css
+++ b/docs/llvm.css
@@ -70,6 +70,10 @@
                   display: table;
                 }
 
+h2+div, h2+p {text-align: left; padding-left: 20pt; padding-right: 10pt;}
+h3+div, h3+p {text-align: left; padding-left: 20pt; padding-right: 10pt;}
+h4+div, h4+p {text-align: left; padding-left: 20pt; padding-right: 10pt;}
+
 /* It is preferrable to use <pre class="doc_code"> everywhere instead of the
  * <div class="doc_code"><pre>...</ptr></div> construct.
  *