How Can I Achieve Equal Height Columns with CSS Flexbox, and What are the Limitations?

Equal Height Columns with CSS

You encounter issues when trying to use percentages for CSS tables because tables cannot inherently auto-adjust to the height of their contents as flexbox elements do.

Equal Height Columns with Flexbox

HTML

<ul>
  <li>1</li>
  <li>2</li>
  <li>3</li>
  <li>4</li>
  <li>5</li>
  <li>6</li>
</ul>

CSS

ul {
  display: flex;
}

With this code, flexbox automatically adjusts the height of each list item to match the height of the tallest item, resulting in equal height columns.

Considerations for Flexbox Equal Height Columns

• Flex equal height columns only apply to siblings, not to nested elements.
• Applying a height to a flex item overrides the equal height feature.
• Equal height columns apply only to flex items on the same line.

To Disable Equal Height Columns in Flexbox:

• Set align-items to flex-start or flex-end instead of stretch.

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