The HTML <col> Tag is used to specify the general column properties for each column in the <colgroup> interval section of the Associate Hypertext Markup Language Table.
The <col> Tag is useful when you need to use the general rules for each column cell instead of applying one by one.
Note:- Note: The <col> Tag does not require a closing tag in HTML but it does require a closing </col> Tag in XHTML.
Example:-
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>
HTML col tag
</title>
</head>
<body>
<h1>This is HTML col Tag Example</h1>
<table border="1">
<colgroup>
<col span="1" style="background-color:red;">
<col span="2" style="background-color:yellow;">
</colgroup>
<tr>
<th>Roll No.</th>
<th>Name</th>
<th>Grade</th>
</tr>
<tr>
<td>3476896</td>
<td>Khushal</td>
<td>A+</td>
</tr>
</table>
</body>
</html>Output:-
