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Collapsible Content Accordion

Demo:


Click Here to Open and Close this Accordion 
This accordion defaults to closed...

Click Here to Close and Open this Accordion 
*This accordion defaults to open...

HOW-TO:

Any content in your post or page that you want to hide inside a collapsible accordion, put it in between these 2 blocks of HTML in the editor:

HTML Block 1…

<details>
  <summary>Click Here to Open and Close this Accordion</summary>

* To make the accordion open by default, add open to the above <details> tag like so…

<details open>



[Add your post or page content and any blocks in the editor, as usual, sandwiched right here, in between]


HTML Block 2…

</details>

<style> /* some optional pretty styling */
            
details {
    width: 100%;
    background-color: #eee;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px #35353536;
}
            
summary {
    background: rgb(59,89,152,.5);
    color: #fff;
    padding: 0 0 0 15px;
    margin: -5px;
    cursor: pointer;
    border: .5px solid gray;
    border-radius: 5px;
    outline: none;
}

summary:focus, summary:hover {
background-color: rgb(0,172,237,.5);
}
            
</style>

Result:

Your accordion should look like this:

accordion-closed
accordion-closed1557×120 18.9 KB

Example:

Here is an example where I’m displaying my Table of Contents in an Accordion:

https://ghost-o-matic.com/collapsible-toc/

Note:

You can put an unlimited number of accordions on any post/page.

You can also put simple Accordions like this anywhere else that displays HTML, since it is a standard, built-in HTML5 element…

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