Allow slashes in HTML attributes

Parsedown.php

@@ -619,7 +619,7 @@ class Parsedown
 
     protected function identifyMarkup($Line)
     {
-        if (preg_match('/^<(\w[\w\d]*)(?:[ ][^>\/]*)?(\/?)[ ]*>/', $Line['text'], $matches))
+        if (preg_match('/^<(\w[\w\d]*)(?:[ ][^>]*)?(\/?)[ ]*>/', $Line['text'], $matches))
         {
             if (in_array($matches[1], $this->textLevelElements))
             {

test/data/block-level_html.html

@@ -6,3 +6,8 @@ _content_
 </div>
 </div>
 <p>paragraph</p>
+<style type="text/css">
+    p {
+        color: red;
+    }
+</style>

test/data/block-level_html.md

@@ -9,3 +9,9 @@ _content_
 </div>
 
 paragraph
+
+<style type="text/css">
+    p {
+        color: red;
+    }
+</style>