How to Use Percentage Padding or Margin Based on Parent Container Height in CSS?

How to Set Padding or Margin as Percentage of Parent Container Height

When attempting to align an element vertically using CSS, it may seem logical to set the padding-top or margin-top property as a percentage of the parent container's height. However, using percentages with padding-top and margin-top results in values relative to the container's width, causing unexpected behavior when the container's width changes.

The Solution

To set padding or margin as a percentage of the parent container's height, avoid using padding-top and margin-top. Instead, set the top or bottom property of the element within the parent container.

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Explanation

By using the top property, the child element's position is now relative to the parent container's height, ensuring that the vertical alignment remains consistent regardless of the container's width.

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