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HTML Table Colgroup

If you want to style the two first columns of a table, use the <colgroup> and <col> elements.

MON	TUE	WED	THU	FRI	SAT	SUN
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28

The <colgroup> element should be used as a container for the column specifications.

Each group is specified with a <col> element.

The span attribute specifies how many columns that get the style.

The style attribute specifies the style to give the columns.

Note: There is a very limited selection of legal CSS properties for colgroups.

<!DOCTYPE html>
<html>
<head>
<title>HTML Table Colgroup</title>
</head>
<body>

<h2>Colgroup</h2>
<p>Add the a colgroup with a col element that spans over two columns to define a style for the two columns:</p>

<table style="width: 100%;">
<colgroup>
  <col span="2" style="background-color: #D6EEEE">
</colgroup>
  <tr>
    <th>#</th>
    <th>Name of Student</th>
    <th>Class</th>
  </tr>
  <tr>
    <td>1.</td>
    <td>Taranpreet Singh</td>
    <td>6th</td>
  </tr>
  <tr>
    <td>2.</td>
    <td>Mehakpreet Kaur</td>
    <td>7th</td>
  </tr>
  <tr>
    <td>3.</td>
    <td>Veerpal Kaur</td>
    <td>8th</td>
  </tr>
  <tr>
    <td>4.</td>
    <td>Jasmeen</td>
    <td>9th</td>
  </tr>
  <tr>
    <td>5.</td>
    <td>Sonia</td>
    <td>10th</td>
  </tr>
  <tr>
    <td>6.</td>
    <td>Jaskaran Singh</td>
    <td>11th</td>
  </tr>
  <tr>
    <td>7.</td>
    <td>Arshdeep Kaur</td>
    <td>12th</td>
  </tr>
  
</table>

</body>
</html>

Live Demo & Try it yourself!

#HTML #table #Colgroup

Multiple Col Elements

If you want to style more columns with different styles, use more <col> elements inside the <colgroup>:

<!DOCTYPE html>
<html>
<head>
<title>Multiple Col Elements</title>
</head>
<body>

<h2>Multiple Col Elements</h2>
<p>Add multiple col elements in the colgroup:</p>

<table style="width: 100%;">
  <colgroup>
    <col span="1" style="background-color: #D6EEEE">
    <col span="1" style="background-color: pink">
  </colgroup>
  <tr>
    <th>#</th>
    <th>Name of Student</th>
    <th>Class</th>
  </tr>
  <tr>
    <td>1.</td>
    <td>Taranpreet Singh</td>
    <td>6th</td>
  </tr>
  <tr>
    <td>2.</td>
    <td>Mehakpreet Kaur</td>
    <td>7th</td>
  </tr>
  <tr>
    <td>3.</td>
    <td>Veerpal Kaur</td>
    <td>8th</td>
  </tr>
  <tr>
    <td>4.</td>
    <td>Jasmeen</td>
    <td>9th</td>
  </tr>
  <tr>
    <td>5.</td>
    <td>Sonia</td>
    <td>10th</td>
  </tr>
  <tr>
    <td>6.</td>
    <td>Jaskaran Singh</td>
    <td>11th</td>
  </tr>
  <tr>
    <td>7.</td>
    <td>Arshdeep Kaur</td>
    <td>12th</td>
  </tr>
  
</table>

</body>
</html>

Live Demo & Try it yourself!

#HTML #table #Colgroup #multiple colgroup

Empty Colgroups

If you want to style columns in the middle of a table, insert a "empty" <col> element (with no styles) for the columns before:

<!DOCTYPE html>
<html>
<head>
<title>Empty Colgroups</title>
</head>
<body>

<h2>Empty Colgroups</h2>
<p>Add "empty" col elements that represents the columns before the columns you want to style:</p>

<table style="width: 100%;">
<colgroup>
  <col span="1">
  <col span="2" style="background-color: pink">
</colgroup>
  <tr>
    <th>#</th>
    <th>Name of Student</th>
    <th>Class</th>
  </tr>
  <tr>
    <td>1.</td>
    <td>Taranpreet Singh</td>
    <td>6th</td>
  </tr>
  <tr>
    <td>2.</td>
    <td>Mehakpreet Kaur</td>
    <td>7th</td>
  </tr>
  <tr>
    <td>3.</td>
    <td>Veerpal Kaur</td>
    <td>8th</td>
  </tr>
  <tr>
    <td>4.</td>
    <td>Jasmeen</td>
    <td>9th</td>
  </tr>
  <tr>
    <td>5.</td>
    <td>Sonia</td>
    <td>10th</td>
  </tr>
  <tr>
    <td>6.</td>
    <td>Jaskaran Singh</td>
    <td>11th</td>
  </tr>
  <tr>
    <td>7.</td>
    <td>Arshdeep Kaur</td>
    <td>12th</td>
  </tr>
  
</table>

</body>
</html>

Live Demo & Try it yourself!

#HTML #table #Colgroup #empty

Hide Columns

You can hide columns with the visibility: collapse property:

<!DOCTYPE html>
<html>
<head>
<title>Hide Columns</title>
</head>
<body>
<h2>Hide Columns</h2>
<p>You can hide specific columns with the visibility property:</p>
<table style="width: 100%;">
<colgroup>
    <col span="1">
    <col span="1" style="visibility: collapse">
  </colgroup>

  <tr>
    <th>#</th>
    <th>Name of Student</th>
    <th>Class</th>
  </tr>
  <tr>
    <td>1.</td>
    <td>Taranpreet Singh</td>
    <td>6th</td>
  </tr>
  <tr>
    <td>2.</td>
    <td>Mehakpreet Kaur</td>
    <td>7th</td>
  </tr>
  <tr>
    <td>3.</td>
    <td>Veerpal Kaur</td>
    <td>8th</td>
  </tr>
  <tr>
    <td>4.</td>
    <td>Jasmeen</td>
    <td>9th</td>
  </tr>
  <tr>
    <td>5.</td>
    <td>Sonia</td>
    <td>10th</td>
  </tr>
  <tr>
    <td>6.</td>
    <td>Jaskaran Singh</td>
    <td>11th</td>
  </tr>
  <tr>
    <td>7.</td>
    <td>Arshdeep Kaur</td>
    <td>12th</td>
  </tr>
  
</table>
<p><b>Note:</b> The table columns does not collapse properly in Safari browsers.</p>
</body>
</html>

Live Demo & Try it yourself!