'fieldset' groups 'form' elements by drawing a rectangle
<html>
<head>
<title>fieldset element example</title>
</head>
<body>
<form name="form1" method="post" action="">
<p>
<fieldset>
<input type="text" name="textfield1" value="First text field in first fieldset"size="60">
<br>
<input type="text" name="textfield2" value="Second text field in first fieldset"size="50">
</fieldset>
</p>
</form>
<form name="form2" method="post" action="">
<p>
<fieldset>
<input type="text" name="textfield3" value="First text field in second fieldset"size="65">
<br>
<input type="text" name="textfield4" value="Second text field in second fieldset"size="45">
<br>
<input type="text" name="textfield5" value="Third text field in second fieldset"size="55">
</fieldset>
</p>
</form>
</body>
</html>