HTML <colgroup> tag

HTML <colgroup> tag specifies group of column within an HTML table. It is used a parent container of one or more <col> elements to apply different properties in an HTML table.

Syntax:

<colgroup>......</colgroup>

Following are some specifications about the HTML <colgroup> tag

Display	None
Start tag/End tag	Start tag and End Tag
Usage	HTML tables

Example:

<!DOCTYPE html>  
<html>  
<head>  
    <title>Colgroup tag</title>  
</head>  
<body>  
<h2>Example of Colgroup Tag</h2>  
<table border="1">  
    <colgroup>  
        <col  style="background-color: green" width="40">  
        <col span="2" style="background-color:   #ff7256" width="80">  
    </colgroup>  
    <tr>  
        <th>Sr.No</th>  
        <th>Product</th>  
        <th>Price</th>  
    </tr>  
    <tr>  
        <td>1</td>  
        <td>Rice</td>  
         <td>85</td>  
    </tr>  
    <tr>  
        <td>2</td>  
        <td>Butter</td>  
         <td>260</td>     
       </tr>  
    <tr>  
        <td>3</td>  
        <td>Mango</td>  
         <td>125</td>  
    </tr>  
</table>  
</body>  
</html>

Output:

Attributes

Attribute	Value	Description
align	leftcenterrightjustifychar	It specifies the alignment of the column content. (Not supported in HTML5).
char	character	It specifies the alignment of the content in a column group to the character. (Not supported in HTML5).
charoff	number	It sets the number of characters to offset the column data from the alignment character specified by the char attribute. (Not supported in HTML5).
span	number	It specifies the number of columns a colgroup should span.
valign	topmiddlebottombaseline	It specifies the vertical alignment of the column group. (Not supported in HTML5).
width	%Pixelsrelative_length	It specifies the width of the group of column. (Not supported in HTML5).