comments layout issue with missing justify left

[karlcow]

You see how the username, the commented and the time is spread on the full width?

The block is

<div class="wc-Comment-header">
        <span class="wc-Comment-owner js-Comment-owner">
          <a class="wc-Link" href="https://github.com/karlcow">karlcow</a>
        </span> commented <a class="wc-Link" href="#issuecomment-197734839">an hour ago</a>
</div>

with the style:

.wc-Comment-header {
    border-radius: 10px 10px 0 0;
    background-color: #f0f0f0;
    padding: .8em .8em .8em 1em;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -moz-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
    -moz-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
}

For it to work it needs an additional div

<div class="wc-Comment-header">
  <div>
        <span class="wc-Comment-owner js-Comment-owner">
          <a class="wc-Link" href="https://github.com/karlcow">karlcow</a>
        </span> commented <a class="wc-Link" href="#issuecomment-197734839">an hour ago</a>
  </div>
</div>

[magsout]

ah yes oups.. it's because of justify-content