HTML <table> class Attribute

The class attribute on a <table> tag assigns one or more classnames to the table element. Classes are used to style elements. Classnames are defined in a stylesheet or in a local <style> element.

Example

#

A class attribute styling a <table> element.

First name Last name
Denice Hobermann
Paulo Cornell
Jane Hollander
<style>
  .tb { border-collapse: collapse; width:300px; }
  .tb th, .tb td { padding: 5px; border: solid 1px #777; }
  .tb th { background-color: lightblue; }
</style>

<table class="tb">
  <tr>
    <th>First name</th>
    <th>Last name</th>
  </tr>
  <tr>
    <td>Denice</td>
    <td>Hobermann</td>
  </tr>
  <tr>
    <td>Paulo</td>
    <td>Cornell</td>
  </tr>
  <tr>
    <td>Jane</td>
    <td>Hollander</td>
  </tr>
</table>

Using class

The class attribute assigns one or more classnames to the <table> tag.

Multiple classnames are separated by a space.

Classes (i.e. classnames) are used for styling the table element.

JavaScript uses classes to access one or more elements by classname.

Tip:  class is a global attribute that can be applied to any HTML element.


Syntax

<table class="classnames">

Values

#

Value Description
classnames One or more space-separated class names.

More Examples

A class attribute styling a <table> element.
Clicking the button toggles a classname that separates the table borders.

First name Last name
Denice Hobermann
Paulo Cornell
Jane Hollander

<style>
  .tbl { border-collapse: collapse; width:300px; }
  .tbl th, .tbl td { padding: 5px; border: solid 1px #777; }
  .tbl th { background-color: lightblue; }
  .tbl-separate { border-collapse: separate; border-spacing: 5px;}
</style>

<table id="mytable" class="tbl">
  <tr>
    <th>First name</th>
    <th>Last name</th>
  </tr>
  <tr>
    <td>Denice</td>
    <td>Hobermann</td>
  </tr>
  <tr>
    <td>Paulo</td>
    <td>Cornell</td>
  </tr>
  <tr>
    <td>Jane</td>
    <td>Hollander</td>
  </tr>
</table>

<br />
<button onclick="toggle();">Toggle class</button>

<script>
  let toggle = () => {
     let element = document.getElementById("mytable");
     element.classList.toggle("tbl-separate");
  }
</script>

Code explanation

Two CSS classes are defined in the <style> element.

The class attribute in <table> assigns one classname.

Repeatedly clicking the button toggles another class, collapsing the table border.


Browser support

Here is when class support started for each browser:

Chrome
1.0 Sep 2008
Firefox
1.0 Sep 2002
IE/Edge
1.0 Aug 1995
Opera
1.0 Jan 2006
Safari
1.0 Jan 2003

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