diff --git a/NEWS b/NEWS
index 55448f41..af32f72f 100644
--- a/NEWS
+++ b/NEWS
@@ -23,6 +23,7 @@ NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier
   + nowrap in td
   + clear in br
   + align in caption, table, img and hr
+  + type in ul, ol and li
 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
   to enable
 ! CSS property white-space now allows nowrap (supported in all modern
diff --git a/docs/dev-progress.html b/docs/dev-progress.html
index f55dbb02..8d245308 100644
--- a/docs/dev-progress.html
+++ b/docs/dev-progress.html
@@ -262,7 +262,7 @@ Mozilla on inside and needs -moz-outline, no IE support.</td></tr>
 </tbody>
 
 <tbody>
-<tr><th colspan="3">Transform, target milestone 1.6.1/1.7</th></tr>
+<tr><th colspan="3">Transform</th></tr>
 <tr class="impl-yes"><td rowspan="5">align</td><td>CAPTION</td><td>'caption-side' for top/bottom, 'text-align' for left/right</td></tr>
     <tr class="impl-yes"><td>IMG</td><td rowspan="3">See specimens/html-align-to-css.html</td></tr>
     <tr class="impl-yes"><td>TABLE</td></tr>
@@ -286,9 +286,9 @@ Mozilla on inside and needs -moz-outline, no IE support.</td></tr>
 <tr class="impl-yes"><td>size</td><td>HR</td><td>Near-equiv 'height', needs px suffix if original was pixels</td></tr>
 <tr class="required impl-yes"><td>src</td><td>IMG</td><td>Required, insert blank or default img if not set</td></tr>
 <tr class="impl-yes"><td>start</td><td>OL</td><td>Poorly supported 'counter-reset', allowed in loose, dropped in strict</td></tr>
-<tr><td rowspan="3">type</td><td>LI</td><td rowspan="3">Equivalent style 'list-style-type', different allowed values though. (needs testing)</td></tr>
-    <tr><td>OL</td></tr>
-    <tr><td>UL</td></tr>
+<tr class="impl-yes"><td rowspan="3">type</td><td>LI</td><td rowspan="3">Equivalent style 'list-style-type', different allowed values though. (needs testing)</td></tr>
+    <tr class="impl-yes"><td>OL</td></tr>
+    <tr class="impl-yes"><td>UL</td></tr>
 <tr class="impl-yes"><td>value</td><td>LI</td><td>Poorly supported 'counter-reset', allowed in loose, dropped in strict</td></tr>
 <tr class="impl-yes"><td>vspace</td><td>IMG</td><td>Near-equiv styles 'margin-left' and 'margin-right', needs px suffix, see hspace</td></tr>
 <tr class="impl-yes"><td rowspan="2">width</td><td>HR</td><td rowspan="2">Near-equiv style 'width', needs px suffix if original was pixels</td></tr>
diff --git a/library/HTMLPurifier/HTMLModule/TransformToStrict.php b/library/HTMLPurifier/HTMLModule/TransformToStrict.php
index ce621b50..0b6c8370 100644
--- a/library/HTMLPurifier/HTMLModule/TransformToStrict.php
+++ b/library/HTMLPurifier/HTMLModule/TransformToStrict.php
@@ -28,7 +28,7 @@ class HTMLPurifier_HTMLModule_TransformToStrict extends HTMLPurifier_HTMLModule
     // we're actually modifying these elements, not defining them
     var $elements = array('h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p',
         'blockquote', 'table', 'td', 'th', 'tr', 'img', 'a', 'hr', 'br',
-        'caption');
+        'caption', 'ul', 'ol', 'li');
     
     var $info_tag_transform = array(
         // placeholders, see constructor for definitions
@@ -165,6 +165,28 @@ class HTMLPurifier_HTMLModule_TransformToStrict extends HTMLPurifier_HTMLModule
                 'right' => 'margin-left:auto;margin-right:0;text-align:right;'
             ));
         
+        $ul_types = array(
+            'disc'   => 'list-style-type:disc;',
+            'square' => 'list-style-type:square;',
+            'circle' => 'list-style-type:circle;'
+        );
+        $ol_types = array(
+            '1'   => 'list-style-type:decimal;',
+            'i'   => 'list-style-type:lower-roman;',
+            'I'   => 'list-style-type:upper-roman;',
+            'a'   => 'list-style-type:lower-alpha;',
+            'A'   => 'list-style-type:upper-alpha;'
+        );
+        $li_types = $ul_types + $ol_types;
+        
+        $this->info['ul']->attr_transform_pre['type'] =
+            new HTMLPurifier_AttrTransform_EnumToCSS('type', $ul_types);
+        $this->info['ol']->attr_transform_pre['type'] =
+            new HTMLPurifier_AttrTransform_EnumToCSS('type', $ol_types, true);
+        $this->info['li']->attr_transform_pre['type'] =
+            new HTMLPurifier_AttrTransform_EnumToCSS('type', $li_types, true);
+        
+        
     }
     
     var $defines_child_def = true;
diff --git a/smoketests/attrTransform.xml b/smoketests/attrTransform.xml
index 12dbe52e..74500488 100644
--- a/smoketests/attrTransform.xml
+++ b/smoketests/attrTransform.xml
@@ -166,6 +166,17 @@
         <sample><![CDATA[<hr align="center" class="short" />center]]></sample>
         <sample><![CDATA[<hr align="right" class="short" />right]]></sample>
     </group>
+    <group title="ul,ol,li.type">
+        <sample><![CDATA[<ul type="disc"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ul type="square"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ul type="circle"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ol type="a"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ol type="A"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ol type="i"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ol type="I"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ol type="1"><li>1</li><li>2</li></ul>]]></sample>
+        <sample><![CDATA[<ol><li type="a">1</li><li type="I">2</li></ul>]]></sample>
+    </group>
     
     
     <!-- sample
diff --git a/tests/HTMLPurifier/Strategy/ValidateAttributesTest.php b/tests/HTMLPurifier/Strategy/ValidateAttributesTest.php
index 2d5baeec..bba4e99d 100644
--- a/tests/HTMLPurifier/Strategy/ValidateAttributesTest.php
+++ b/tests/HTMLPurifier/Strategy/ValidateAttributesTest.php
@@ -371,6 +371,69 @@ class HTMLPurifier_Strategy_ValidateAttributesTest extends
         );
     }
     
+    function testListTypeTransform() {
+        // ul
+        $this->assertResult(
+            '<ul type="disc" />',
+            '<ul style="list-style-type:disc;" />'
+        );
+        $this->assertResult(
+            '<ul type="square" />',
+            '<ul style="list-style-type:square;" />'
+        );
+        $this->assertResult(
+            '<ul type="circle" />',
+            '<ul style="list-style-type:circle;" />'
+        );
+        $this->assertResult( // case insensitive
+            '<ul type="CIRCLE" />',
+            '<ul style="list-style-type:circle;" />'
+        );
+        $this->assertResult(
+            '<ul type="a" />',
+            '<ul />'
+        );
+        // ol
+        $this->assertResult(
+            '<ol type="1" />',
+            '<ol style="list-style-type:decimal;" />'
+        );
+        $this->assertResult(
+            '<ol type="i" />',
+            '<ol style="list-style-type:lower-roman;" />'
+        );
+        $this->assertResult(
+            '<ol type="I" />',
+            '<ol style="list-style-type:upper-roman;" />'
+        );
+        $this->assertResult(
+            '<ol type="a" />',
+            '<ol style="list-style-type:lower-alpha;" />'
+        );
+        $this->assertResult(
+            '<ol type="A" />',
+            '<ol style="list-style-type:upper-alpha;" />'
+        );
+        $this->assertResult(
+            '<ol type="disc" />',
+            '<ol />'
+        );
+        // li
+        $this->assertResult(
+            '<li type="circle" />',
+            '<li style="list-style-type:circle;" />'
+        );
+        $this->assertResult(
+            '<li type="A" />',
+            '<li style="list-style-type:upper-alpha;" />'
+        );
+        $this->assertResult( // case sensitive
+            '<li type="CIRCLE" />',
+            '<li />'
+        );
+        
+    }
+    
 }
 
 ?>