Flexible CSS: How to set 100% height on flexbox column child

If you're working with a flexbox column layout, you may want to set the height of your child elements to 100% in order to create a full-height design. Fortunately, this is possible with some simple CSS.

First, you'll need to set the flex container to have a height of 100%:

<div class="flex-container" style="height: 100%;">
  ...
</div>

Next, you'll want to set the flex column child to have a flex-grow value of 1, which will cause it to expand to fill the available space:

<div class="flex-column-child" style="flex-grow: 1;">
  ...
</div>

Finally, you can set the height of the child element to 100%:

<div class="flex-column-child" style="flex-grow: 1; height: 100%;">
  ...
</div>

By combining these styles, you can create a flexible layout that adapts to different screen sizes while still maintaining a full-height design. Don't forget to test your layout on different devices to ensure that it looks great across the board!