| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     "foo"
|     <math math>
|       <math mtext>
|         <i>
|           "baz"
|       <math annotation-xml>
|         <svg svg>
|           <svg desc>
|             <b>
|               "eggs"
|           <svg g>
|             <svg foreignObject>
|               <p>
|                 "spam"
|               <table>
|                 <tbody>
|                   <tr>
|                     <td>
|                       <img>
|           <svg g>
|             "quux"
|     "bar"
