HTML <colgroup> span Attribute
Example
Set the background color of the first two columns using the <colgroup> span attribute:
  
    <table>
  <colgroup span="2" style="background:red"></colgroup>
  <tr>
    <th>ISBN</th>
    <th>Title</th>
    <th>Price</th>
  </tr>
  <tr>
    <td>3476896</td>
    <td>My first HTML</td>
    <td>$53</td>
  </tr>
  <tr>
    <td>5869207</td>
    <td>My first CSS</td>
    <td>$49</td>
  </tr>
 </table>
  
Try it Yourself »
Definition and Usage
The span attribute defines the number of columns a <colgroup> element should span.
Tip: To define different properties to a column within a <colgroup>, use the <col> tag within the <colgroup> tag.
Browser Support
| Attribute | |||||
|---|---|---|---|---|---|
| span | Yes | Yes | Yes | Yes | Yes | 
Differences Between HTML 4.01 and HTML5
NONE.
Syntax
    <colgroup span="number">
Attribute Values
| Value | Description | 
|---|---|
| number | Sets the number of columns a column group should span | 
❮ HTML <colgroup> tag

