| 71 | 
 <p>In addition, the current implementation assumes that there are following  | 
 <p>In addition, the current implementation assumes that there are following  | 
| 72 | 
 requirements:</p> | 
 requirements:</p> | 
| 73 | 
 <ul> | 
 <ul> | 
| 74 | 
 <li>Any element in the HTML namespace which is not defined by the HTML5  | 
 <li>Any element or attribute in the HTML namespace which is not defined by the | 
| 75 | 
 specification (including Web Forms 2.0 specification) <em class=rfc2119>MUST  | 
 HTML5 specification (including Web Forms 2.0 specification)  | 
| 76 | 
 NOT</em> be used.</li> | 
 <em class=rfc2119>MUST NOT</em> be used.</li> | 
| 77 | 
 <li>For an element in the HTML namespace, any attribute in the null namespace | 
 <li>For an element in the HTML namespace, any attribute in the null namespace | 
| 78 | 
 (or per$B!>(Belement partition) <em class=rfc2119>MUST NOT</em> be used | 
 (or per$B!>(Belement partition) <em class=rfc2119>MUST NOT</em> be used | 
| 79 | 
 unless it is allowed by the HTML5 specification (including Web Forms 2.0 | 
 unless it is allowed by the HTML5 specification (including Web Forms 2.0 | 
| 151 | 
   or <code>th</code><td><code>align</code> or <code>valign</code> | 
   or <code>th</code><td><code>align</code> or <code>valign</code> | 
| 152 | 
   <td>Enumerated attribute [HTML5] | 
   <td>Enumerated attribute [HTML5] | 
| 153 | 
   <tr><td><code>link</code><td><code>target</code> | 
   <tr><td><code>link</code><td><code>target</code> | 
| 154 | 
   <td>Valid browsing context name [HTML5] | 
   <td>Valid browsing context name or keyword [HTML5] | 
| 155 | 
   <tr id=html-meta-scheme><td><code>meta</code><td><code>schema</code> | 
   <tr id=html-meta-scheme><td><code>meta</code><td><code>schema</code> | 
| 156 | 
   <td>Any string | 
   <td>Any string | 
| 157 | 
   <!-- | 
   <!-- |