| <!DOCTYPE html>
| <html>
|   lang="en"
|   <head>
|     "
    "
|     <title>
|       "Document"
|     "
"
|   "
"
|   <body>
|     "
"
|     <table>
|       "
    "
|       <caption>
|         "Superheros and sidekicks"
|       "
    "
|       <colgroup>
|         <col>
|         <col>
|           class="batman"
|           span="2"
|         <col>
|           class="flash"
|           span="2"
|       "
    "
|       <tbody>
|         <tr>
|           "
        "
|           <td>
|             " "
|           "
        "
|           <th>
|             scope="col"
|             "Batman"
|           "
        "
|           <th>
|             scope="col"
|             "Robin"
|           "
        "
|           <th>
|             scope="col"
|             "The Flash"
|           "
        "
|           <th>
|             scope="col"
|             "Kid Flash"
|           "
    "
|         "
"
|     "

"
