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HTML Element: <col>

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The HTML <col> element indicates the column properties assigned to each column within a <colgroup> element. It can be used to apply styles to entire columns in a table.

 

The attributes it can take (other than HTML global attributes and HTML event attributes) include:

 

Attribute

Description

More

span

Number of columns to span

Here

 

It also used to support the align, char, charoff, valign and width attributes, but these are no longer supported in HTML 5.

 

To create or access such an element in JavaScript see here. The corresponding HTML DOM object supports standard DOM properties and methods, and additional properties with the same name and meaning as the attributes of the underlying HTML element referred to above. The default style applicable to this element is shown here.

 

EXAMPLE:


HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head>
<style>
table, th, td {border: 1px solid black; border-collapse: collapse;}
</style>
</head>
<body>
Created using HTML:<br>
<table>
  <colgroup>
    <col span="2" style="background-color: yellow">
    <col style="background-color: orange">
  </colgroup>
  <tr><td>1</td><td>2</td><td>3</td></tr>
</table>

<br><br>Created using JavaScript:<br>
<table id="tbl">
  <tr><td>1</td><td>2</td><td>3</td></tr>
</table>

<script>
var x = document.createElement("COLGROUP");
var x1 = document.createElement("COL");
var x2 = document.createElement("COL");
x1.setAttribute("span","2");
x1.setAttribute("style","background-color: yellow");
x2.setAttribute("style","background-color: orange");
x.appendChild(x1); x.appendChild(x2);
document.getElementById("tbl").appendChild(x);
</script>

</body>
</html>


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