diff --git a/admin/mnet/delete.html b/admin/mnet/delete.html
index bb11f2e288441..4709362ba2498 100644
--- a/admin/mnet/delete.html
+++ b/admin/mnet/delete.html
@@ -46,7 +46,7 @@
             </td>
         </tr>
     </table>
-</center>
+</div>
 <?php
 print_footer();
 ?>
diff --git a/lang/en_utf8/help/contexts.html b/lang/en_utf8/help/contexts.html
index 1825b37f16fd3..f483faa13dca5 100644
--- a/lang/en_utf8/help/contexts.html
+++ b/lang/en_utf8/help/contexts.html
@@ -14,7 +14,6 @@ <h1>Contexts</h1>
 <li>Courses</li>
 <li>Blocks and Activities</li>
 </ol>
-</p>
 
 <p>
 See also 
diff --git a/lang/en_utf8/help/dialogue/info.html b/lang/en_utf8/help/dialogue/info.html
index b6bca58d8cb99..d4f6b88c28c2a 100644
--- a/lang/en_utf8/help/dialogue/info.html
+++ b/lang/en_utf8/help/dialogue/info.html
@@ -1,4 +1,4 @@
-<img alt="" src="<?php echo $CFG->wwwroot?>/mod/dialogue/icon.gif" />&nbsp;<b>Dialogues</b></p>
+<img alt="" src="<?php echo $CFG->wwwroot?>/mod/dialogue/icon.gif" />&nbsp;<b>Dialogues</b>
 
 <p>This module provides a simple communication method between pairs of users.
     A teacher can open an dialogue with a student, a student can open
@@ -18,7 +18,7 @@
 <p>...The module deletes closed dialogues and all their entries after a 
     certain time. That time is set here when the Dialogue is created.</p>
 
-<p>If the course has groups the following points apply.
+<p>If the course has groups the following points apply.</p>
 <ul><li>When opening a new dialogue the teacher is shown the group mode of the 
     dialogue and their current group. This information is displayed immediately
     below the Tab Bar.</li>
@@ -31,5 +31,3 @@
     dialogues). In this mode students who are not in any group do not see any 
     other students.</li>
 </ul>
-</p>
-
diff --git a/lang/en_utf8/help/markdown.html b/lang/en_utf8/help/markdown.html
index bee3a4b2bcf2e..d11175daa6c9a 100644
--- a/lang/en_utf8/help/markdown.html
+++ b/lang/en_utf8/help/markdown.html
@@ -91,8 +91,7 @@ <h3>Numbered Lists</h3>
 
 <h3>Indented Lists</h3>
 
-<p>You can nest or indent bullet and numbered lists, even mixing bullet point and numbered lists in one structure:
-<b></p>
+<p>You can nest or indent bullet and numbered lists, even mixing bullet point and numbered lists in one structure:</p>
 
 <pre>
     * top level bullet one
@@ -104,8 +103,7 @@ <h3>Indented Lists</h3>
     2. numbered point two
 </pre>
 
-<p></b>
-becomes</p>
+<p>becomes</p>
 
 <ul>
 <li>top level bullet one
diff --git a/lang/en_utf8/help/permissions.html b/lang/en_utf8/help/permissions.html
index 2ccf029d71872..6c0b93d1ffae7 100644
--- a/lang/en_utf8/help/permissions.html
+++ b/lang/en_utf8/help/permissions.html
@@ -10,7 +10,7 @@ <h1>Permissions</h1>
 
 <p>
 In each role, you can choose to set the permission for such a capability 
-to one of four values:
+to one of four values:</p>
 <dl>
 <dt>INHERIT</dt>
 <dd>This is the default setting, generally.  It's a neutral setting that
@@ -48,7 +48,6 @@ <h1>Permissions</h1>
   </dd>
 
 </dl>
-</p>
 
 <h1>Conflict resolution of permissions</h1>
 
diff --git a/lang/en_utf8/help/roles.html b/lang/en_utf8/help/roles.html
index e133454e0010f..319cc8d3f51fe 100644
--- a/lang/en_utf8/help/roles.html
+++ b/lang/en_utf8/help/roles.html
@@ -18,8 +18,8 @@ <h1>Roles</h1>
 <p>
 A role must have a <strong>name</strong>.  If you need to name the role for multiple 
 languages you can use multilang syntax if you wish, such as <pre>
-  &lt;span lang="en">Teacher&lt;/span> 
-  &lt;span lang="es_es">Profesor&lt;/span> 
+  &lt;span lang="en"&gt;Teacher&lt;/span&gt; 
+  &lt;span lang="es_es"&gt;Profesor&lt;/span&gt; 
   </pre>If you do this make sure the setting to "filter strings" is on for your installation.
 </p>
 
diff --git a/mod/wiki/checklinks.html b/mod/wiki/checklinks.html
index 6c56883aaffd1..cd931ecd70e8d 100644
--- a/mod/wiki/checklinks.html
+++ b/mod/wiki/checklinks.html
@@ -14,4 +14,5 @@
   choose_from_menu($pagelist, "pagetocheck", $wikipage, "");
 ?>
   <input type="submit" name="proceed" value="<?php print get_string("checklinks","wiki"); ?>" />
-</center></fieldset></form>
+</fieldset>
+</form>