Building a Collapsible Accordion Component with CSS and JavaScript

Learn how to create a `smoothly hidden accordion component` using CSS and JavaScript that remains collapsed on initial page load.
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This video is based on the question https://stackoverflow.com/q/66016079/ asked by the user 'Halp_am_stuck1' ( https://stackoverflow.com/u/14908760/ ) and on the answer https://stackoverflow.com/a/66016911/ provided by the user 'Halp_am_stuck1' ( https://stackoverflow.com/u/14908760/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Building a Collapsible Accordion Component with CSS and JavaScript

Creating interactive components such as an accordion can enhance user experience, especially on review sections of websites. The problem many developers face, especially the beginners, is how to implement this functionality correctly.

In this post, we will focus on how to build an accordion component that remains hidden in its initial state and only displays its contents when toggled by the user. Let's delve into this common challenge and find the right solution.

Understanding the Problem

When developing a review section with an accordion component, the desired feature is for the section to be collapsed (hidden) by default when the page loads. Unfortunately, many developers find that their content appears expanded right away, which is not ideal for user interface design.

The Structure of Our HTML

Here’s how the layout for our accordion looks:

[[See Video to Reveal this Text or Code Snippet]]

In the HTML, we have a div with the class reviewsHide, which wraps our accordion content.

Solution Breakdown

To achieve our goal of a hidden accordion on initial load, we need to manipulate our CSS and JavaScript.

CSS Setup

First, we can start by ensuring that our initial state of the accordion guarantees it is hidden. We can achieve this with the following CSS:

[[See Video to Reveal this Text or Code Snippet]]

JavaScript Functionality

Next, we implement JavaScript to toggle the visibility of the accordion. Below is the refined snippet that provides the intended function:

[[See Video to Reveal this Text or Code Snippet]]

How It Works

CSS: By default, the section is hidden (display: none;). When the .show class is added, it displays the contents.

JavaScript: The arrow button (.span) listens for clicks. Upon clicking, it toggles the .show class on the accordion wrapper, thus controlling its visibility.

Conclusion

Creating a dynamic accordion component that remains hidden on initial load is straightforward once you understand the structure and the required manipulation of CSS and JavaScript. By following the steps outlined above, you will enhance your site’s functionality and improve user experience.

Feel free to apply this knowledge to your own web projects; with practice, you'll be creating beautifully interactive components in no time!

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