HTML <details> style Attribute

The style attribute on a <details> tag assigns a unique style to the details disclosure element. A style contains one or more CSS property/value pairs that define the appearance of the details element.

Example

#

A style attribute on a <details> element.

Van Gogh's Paintings

Sunflowers

Starry Night

Self Portrait

<details style="background-color:aliceblue;padding:10px;">
  <summary>Van Gogh's Paintings</summary>
  <p>Sunflowers</p>
  <p>Starry Night</p>
  <p>Self Portrait</p>
</details>

Using style

The style attribute specifies the style, i.e. look and feel, of the <details> element.

A style contains any number of CSS property/value pairs, separated by semicolons (;).

The style attribute overrides any other style that was defined in a <style> tag or an external CSS file.

This inline styling affects the current <details> element only.


Syntax

<details style="CSS-styles" >

Values

#

Value Description
CSS-styles One or more CSS property/value pairs separated by semicolons (;).

More Examples

A style attribute on a <details> element.
Clicking the button toggles the background color.

Van Gogh's Paintings

Sunflowers

Starry Night

Self Portrait


<details style="background-color:aliceblue;padding:10px;"
         id="mydetails">
  <summary>Van Gogh's Paintings</summary>
  <p>Sunflowers</p>
  <p>Starry Night</p>
  <p>Self Portrait</p>
</details>

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

<script>
  let toggle = () => {
    let element = document.getElementById("mydetails");

    if (element.style.backgroundColor === "aliceblue") {
       element.style.backgroundColor = "paleturquoise";
    } else {
       element.style.backgroundColor = "aliceblue";
    }
  }
</script>

Code explanation

The style attribute assigns a background color to the <details> element.

Clicking the button calls JavaScript which changes the background color.


Browser support

Here is when style support started for each browser:

Chrome
12.0 Jun 2011
Firefox
49.0 Sep 2016
IE/Edge
Not supported
Opera
15.0 Jul 2015
Safari
6.0 Jul 2012

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