HTML <section> hidden Attribute

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

<p>A hidden section:</p>

<section hidden>
  <h2>The Night Watch</h2>
  <p>The Night Watch (Dutch: De Nachtwacht), is a 1642 
     painting by Rembrandt van Rijn. It is in the collection 
     of the Amsterdam Museum but is prominently displayed 
     in the Rijksmuseum (State Museum) as the best-known 
     painting in its collection. The Night Watch is 
     the most famous Dutch Golden Age painting.
  </p>
</section>

<section hidden>

<section hidden="hidden">

Clicking the button toggles A hidden attribute on the <section> element.

<section id="mysection">
  <h2>The Night Watch</h2>
  <p>The Night Watch (Dutch: De Nachtwacht), is a 1642 
     painting by Rembrandt van Rijn. It is in the collection 
     of the Amsterdam Museum but is prominently displayed 
     in the Rijksmuseum (State Museum) as the best-known 
     painting in its collection. The Night Watch is 
     the most famous Dutch Golden Age painting.
  </p>
</section>

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

<script>
  let toggle = button => {
    let element = document.getElementById("mysection");
    let hidden = element.getAttribute("hidden");

    if (hidden) {
       element.removeAttribute("hidden");
       button.innerText = "Hide Section";
    } else {
       element.setAttribute("hidden", "hidden");
       button.innerText = "Show Section";
    }
  }
</script>

Code explanation

Here is when hidden support started for each browser:

Chrome	6.0	Sep 2010
Firefox	4.0	Mar 2011
IE/Edge	9.0	Mar 2011
Opera	11.1	Mar 2011
Safari	5.0	Jun 2010

• Our HTML section Tag Reference
• Our HTML hidden Attribute Reference
• Our CSS display Property Reference