HTML - span Attribute

The span attribute is an HTML attribute that specifies the number of columns a <col> or <colgroup> element should span.

The span attribute is used to span the column, and when we apply CSS properties to the <col> or <colgroup> element, then span will allow us to apply the same CSS properties to several columns.

Following are the element where we can use the span attribute −

  • <col>
  • <colgroup>

Syntax

Following is the syntax of the span attribute −

<col span="2">
Or
<colgroup span="2">

where the span attribute can take any numerical value.

Example

In the following example, we are going to use the span attribute to style the specified column of the <col> element.

<!DOCTYPE html>
<html>
<head>
   <style>
      table,
      th,
      td {
         border: 1px solid black;
      }
   </style>
</head>
<body>
   <h1>The col element</h1>
   <table>
      <colgroup>
         <col span="2" style="background-color:red">
         <col style="background-color:yellow">
      </colgroup>
      <tr>
         <th>SNo</th>
         <th>fName</th>
         <th>lName</th>
      </tr>
      <tr>
         <td>100</td>
         <td>Aman</td>
         <td>Kumar</td>
      </tr>
      <tr>
         <td>101</td>
         <td>Akash</td>
         <td>Ranjan</td>
      </tr>
   </table>
</body>
</html>

When we run the above code, it will generate an output consisting of the table aplplied with CSS on the webpage.

Example

Considering the another scenario, where we are going to set the background colo of all the columns using the <colgroup> span attribute.

<!DOCTYPE html>
<html>
<head>
   <style>
      table,
      th,
      td {
         border: 1px solid gray;
      }
   </style>
</head>
<body>
   <h1>The colgroup span attribute</h1>
   <table>
      <colgroup span="3" style="background:green"></colgroup>
      <tr>
         <th>SNo</th>
         <th>fName</th>
         <th>lName</th>
      </tr>
      <tr>
         <td>100</td>
         <td>Aman</td>
         <td>Kumar</td>
      </tr>
      <tr>
         <td>101</td>
         <td>Akash</td>
         <td>Ranjan</td>
      </tr>
   </table>
</body>
</html>

On running the above code, the output window will pop up displaying the table applied with background color on the webpage.

html_attributes_reference.htm
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