Prevent a flex items height from expanding to match other flex items

Question

I have two elements inside a container, which are being side-by-side by using flex box. On the second element (.flexbox-2), I am setting it's height in the CSS. However, then the first element (.flexbox-1) will match the height of .flexbox-2. How would I stop .flexbox-1 from matching the height of .flexbox-2, and instead just retain its natural height?

Here is what I have so far (also available as a jsFiddle)

Answer 1

I know this is an old question but a better solution is to set the flex item to align to the top using flex-start.

/* Default Styles */
.container {
  display: flex;
}
.flexbox-2 {
  flex: 2;
  border: solid 3px blue;
  height: 200px;
  margin-left: 10px;
}
 .flexbox-1 {
  flex: 1;  
  align-self: flex-start;  
  border: solid 3px red;
}

<div class="container">
  <div class="flexbox-1">"align-self: flex-start;"</div>
  <div class="flexbox-2">.flexbox-2</div>
</div>