HTML <main> hidden Attribute

The hidden attribute on a <main> tag hides the main element. Althought the main element is not visible, it maintains its position on the page.

Example

#

A hidden attribute on a <main> tag.
The main element is not visible.

A hidden main element:

Impressionism is a 19th-century art movement characterized by relatively small brush strokes, emphasis on accurate depiction of light, ordinary subject matter, and unusual visual angles. Impressionism originated with a group of Paris-based artists whose independent exhibitions brought them to prominence in the 1870s and 1880s.
<p>A hidden main element:</p>

<main hidden>
  <b>Impressionism</b> is a 19th-century art movement 
  characterized by relatively small brush strokes, 
  emphasis on accurate depiction of light, ordinary
  subject  matter, and unusual visual angles. 
  Impressionism originated  with a group of 
  Paris-based artists whose independent exhibitions 
  brought them to prominence in the 1870s and 1880s.
</main>

Using hidden

The hidden attribute hides the <main> element.

You can specify either 'hidden' (without value) or 'hidden="hidden"'. Both are valid.

A hidden <main> element is not visible, but it maintains its position on the page.

Removing the hidden attribute makes it re-appear.


Syntax

<main hidden>
or
<main hidden="hidden">

Values

#

Value Description
hidden Use 'hidden' or hidden='hidden'. Both are valid.

More Examples

Clicking the button toggles the hidden attribute on the <main> tag.

Impressionism is a 19th-century art movement characterized by relatively small brush strokes, emphasis on accurate depiction of light, ordinary subject matter, and unusual visual angles. Impressionism originated with a group of Paris-based artists whose independent exhibitions brought them to prominence in the 1870s and 1880s.

<main id="mymain">
  <b>Impressionism</b> is a 19th-century art movement 
  characterized by relatively small brush strokes, 
  emphasis on accurate depiction of light, ordinary
  subject  matter, and unusual visual angles. 
  Impressionism originated  with a group of 
  Paris-based artists whose independent exhibitions 
  brought them to prominence in the 1870s and 1880s.
</main>

<br />
<button onclick="toggle(this)">Hide main</button>

<script>
  let toggle = button => {
    let element = document.getElementById("mymain");
    let hidden = element.getAttribute("hidden");
    
    if (hidden) {
       element.removeAttribute("hidden");
       button.innerText = "Hide main";
    } else {
       element.setAttribute("hidden", "hidden");
       button.innerText = "Show main";
    }
  }
</script>

Code explanation

Initially, the <main> element has no hidden attribute and can be seen.

Clicking the button calls JavaScript that toggles the hidden attribute.

When the hidden attribute is present, the <main> element will not be visible.


Browser support

Here is when hidden support started for each browser:

Chrome
6.0 Sep 2010
Firefox
4.0 Mar 2011
IE/Edge
12.0 Jul 2015
Opera
11.1 Mar 2011
Safari
5.0 Jun 2010

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