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<html> <!--called root tag-->
<head> <!--used for meta tag-->
<title><!-- it is for title tag-->
understanding table tag with rowspan
</title>
</head>
<body><!-- is container-->
<!--following tag is used as heading-->
<h1>we are going to creat table</h1>
<!-- we are going to create table-->
<table border="1" width="100%" bordercolor="green">
<caption align="top">student's details</caption>
<tr>
<!-- it merges two columns-->
<td colspan=2>one</td>
</tr>
<tr>
<td>three</td>
<td>four</td>
</tr>
</table><!-- closing of table-->
</body><!-- closing of body-->
</html><!-- closing of html-->
