How can I align elements to the left and right in the same line without floats?

Question

I am trying to align two inline elements, one to the left and one to the right. I'd like to accomplish this without using floats.

In my case, I have a h1, with a span and a link. I'd like the span to align to the left and the link to align to the right.

http://jsfiddle.net/Lkfacta3/

h1>span {
  text-align: left;
}
h1>a {
  text-align: right;
}

 <h1><span>Align me left</span> <a href="">align me right</a></h1>

This is the desired result:

Answer 1

You can use some flexbox magic:

h1 {
  display: flex;
  justify-content: space-between;
}

<h1>
  <span>Align me left</span>
  <a href="">align me right</a>
</h1>