title: How do I set a flex-container to be the width of its flex-items?
body: <p>I have a flex container with <code>justify-content: flex-start</code>. There ends up being overflow on the right side due to the flex items taking less space than the size of the container. </p>
  
  <p>Aside from setting an explicit width on the flex-container, is there a way of just having the equivalent of <code>width: auto</code> to remove the overflow?</p>