How Can I Implement Vertical Scrolling in a Full-Height Flexbox Application?

Combining Flexbox and Vertical Scroll in Full-Height Applications

Flexbox provides a powerful mechanism for creating flexible layouts. However, when used in conjunction with a full-height application, achieving vertical scrolling can be a challenge.

Previous Solutions

Previous approaches, such as using the older flexbox properties (e.g., display: box), have proven effective for browsers supporting legacy flexbox syntax. However, for modern browsers using the newer flexbox properties, workarounds like setting height: 0px on the container have been employed, but may introduce undesirable side effects.

Optimal Solution

The optimal solution involves setting a height to the vertically scrollable element within the flexbox layout. By specifying a height (or a minimum height), the flexbox recalculates the element's height, allowing it to grow as needed to accommodate content while still enforcing vertical scrolling when necessary.

#container article {
  flex: 1 1 auto;
  overflow-y: auto;
  min-height: 100px;
}

Benefits

This solution:

• Provides both horizontal and vertical flexibility within the flexbox layout.
• Ensures vertical scrolling only when needed, without the need for additional workarounds.
• Is fully compatible with modern browsers and future CSS standards.

Demo

An enhanced version of the provided JSFiddle demonstrates the optimal solution in action: http://jsfiddle.net/ch7n6/867/.

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