| <!DOCTYPE html>
| <html>
|   lang="en"
|   <head>
|     "
    "
|     <title>
|       "Document"
|     "
"
|   "
"
|   <body>
|     "
"
|     <table>
|       "
    "
|       <caption>
|         "Superheros and sidekicks"
|       "
    "
|       <colgroup>
|         "
        "
|       "
        "
|       <colgroup>
|         <col>
|         "
        "
|         <col>
|           class="batman"
|           span="2"
|         "
        "
|         <col>
|           class="flash"
|           span="2"
|         "
    "
|       "
"
|     "


"
