Скачать или смотреть How to Prevent Center Div Shifting in a Flexbox Layout with jQuery and CSS Transition

Discover how to maintain your center div's position when sliding other divs in a flexbox layout using jQuery and CSS transition techniques.
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This video is based on the question https://stackoverflow.com/q/66259079/ asked by the user 'MarcRaion' ( https://stackoverflow.com/u/12368655/ ) and on the answer https://stackoverflow.com/a/66259294/ provided by the user 'Rory McCrossan' ( https://stackoverflow.com/u/519413/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

When designing a web page with a flexible layout, keeping elements in their intended positions while toggling visibility can be a challenging task. This issue is particularly common when using jQuery's slideToggle() method, which can disrupt your carefully arranged layout, especially in a flexbox setup. In this guide, we'll explore a practical solution to prevent your center div from shifting when the extreme divs are animated.

The Problem

Imagine you have a page with a layout consisting of a <header> and a <section>. Inside the section, you are using three divs positioned using display: flex; and justify-content: space-between;. When applying jQuery's slideToggle() on your outer divs (the left and right ones), the center div moves unexpectedly, disrupting the flow of your design.

Example Scenario

Here's a brief overview of the situation:

Layout Structure:

<div id="listSongs"> (left)

<div id="player"> (center)

<div id="nav"> (right)

JavaScript Behavior:

Click triggers animation on left and right divs.

The result? The center div shifts out of its place as the other two are slid up or down.

The Solution

To achieve a more stable layout while animating divs, you can replace slideToggle() with CSS transitions. Here’s how you can implement this approach:

Step 1: Adjust Your HTML Structure

Start by ensuring your divs are structured correctly within the <section> tag. Here’s a possible adjustment:

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

Step 2: Modify Your JavaScript

Instead of using slideToggle(), use a class toggle to control visibility:

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

Step 3: Update Your CSS

Define a few classes to handle the transitions smoothly. Here is a refined version of your CSS:

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

Key Takeaways

By toggling a class, you control the height instead of using display: none, which retains the layout space.

The added transition property in CSS smoothly animates changes, creating a more visually appealing effect.

This method is less likely to disrupt the layout, keeping your center div stable.

Conclusion

Incorporating CSS transitions with a class-based approach allows you to manage the visibility of elements without losing your layout integrity. By implementing the methods discussed, you ensure that your center div remains stable, contributing to a cleaner and more professional webpage design.

Consider experimenting with the CSS duration and properties to further customize the effects to fit your design needs.