Correct a typo and styling

manual/Tasks/property.html

@@ -49,11 +49,10 @@ they are most definitely not variables.</p>
   <li>By setting the <var>environment</var> attribute with a prefix to use.  Properties will be
     defined for every environment variable by prefixing the supplied name and a period to the name
     of the variable.</li>
-  <li>By setting the <i>runtime</i> attribute with a prefix to use.
-    Properties <code>prefix.availableProcessors</code>,
-    <code>prefix.freeMemory</code>, <code>prefix.totalMemory</code>
-    and <code>prefix.maxMemory</code> will be defined with values that
-    correspond to the corresponding methods of
+  <li>By setting the <var>runtime</var> attribute with a prefix to use.
+    Properties <code>prefix.availableProcessors</code>, <code>prefix.freeMemory</code>, <code>prefix.totalMemory</code>
+    and <code>prefix.maxMemory</code> will be defined with values that correspond to the
+    corresponding methods of
     the <a href="https://docs.oracle.com/javase/10/docs/api/java/lang/Runtime.html">Runtime</a>
     class.</li>
 </ul>
@@ -128,18 +127,17 @@ to <a href="http://java.sun.com/dtd/properties.dtd" target="_top">Sun DTD</a>, w
   </tr>
   <tr>
     <td>runtime</td>
-    <td>the prefix to use when retrieving Runtime properties. Thus if
-    you specify <var>runtime</var>=<q>myrt</q> you will be able to
-    access runtime values corresponding to methods in
+    <td>the prefix to use when retrieving Runtime properties. Thus if you
+    specify <var>runtime</var>=<q>myrt</q> you will be able to access runtime values corresponding
+    to methods in
     the <a href="https://docs.oracle.com/javase/10/docs/api/java/lang/Runtime.html">Runtime</a>
-    class via property names <code>myrt.availableProcessors</code>,
-    <code>myrt.maxMemory</code>, <code>myrt.totalMemory</code> or
-    <code>myrt.freeMemory</code>. Note that if you supply a property name with a final
-    <code>.</code> it will not be doubled; i.e. runtime=<code>myrt.</code> will still
-    allow access of prpperties through <code>myrt.maxMemory</code>.<br>
-    Note also that the property values are snapshots taken at the point in time
-    when the <code>property</code> has been executed.
-    <em>Since Ant 1.10.4</em>
+    class via property
+    names <code>myrt.availableProcessors</code>, <code>myrt.maxMemory</code>, <code>myrt.totalMemory</code>
+    or <code>myrt.freeMemory</code>. Note that if you supply a property name with a final <q>.</q>
+    it will not be doubled; i.e. <var>runtime</var>=<q>myrt.</q> will still allow access of
+    properties through <code>myrt.maxMemory</code>.<br>  Note also that the property values are
+    snapshots taken at the point in time when the <code>property</code> has been executed. <em>Since
+    Ant 1.10.4</em>
     </td>
   </tr>
   <tr>