HTML <pre> hidden Attribute

HTML <picture>

HTML <progress>

A hidden attribute on a <pre> tag hides the pre element.

Although the pre element is not visible, its position on the page is maintained.

Example

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A hidden attribute on a <pre> element.
The pre-formatted text is not visible.

A hidden pre element

  SELECT FirstName, LastName
  FROM Customer ORDER BY LastName

<p>A hidden pre element</p>

<pre hidden>
  SELECT FirstName, LastName
  FROM Customer ORDER BY LastName
</pre>

Using hidden

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The hidden attribute hides the <pre> element.

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

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

Removing the hidden attribute makes it re-appear.

Syntax

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<pre hidden>

<pre hidden="hidden">

Values

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

More Examples

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

  SELECT FirstName, LastName
  FROM Customer ORDER BY LastName

<pre id="mypre" style="background:ghostwhite;">
  SELECT FirstName, LastName
  FROM Customer ORDER BY LastName
</pre>

<br />
<button onclick="toggle(this)">Hide pre</button>

<script>
  let toggle = button => {
    let element = document.getElementById("mypre");
    let hidden = element.getAttribute("hidden");
    
    if (hidden) {
       element.removeAttribute("hidden");
       button.innerText = "Hide pre";
    } else {
       element.setAttribute("hidden", "hidden");
       button.innerText = "Show pre";
    }
  }
</script>

Code explanation

Initially, the <pre> is visible.

Clicking the button calls JavaScript which toggles A hidden attribute on the <pre> element.

With the hidden attribute the <pre> element is invisible.

Browser support

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Here is when hidden support started for each browser: