我在flexbox中并排有2个div。右手应始终具有相同的宽度，我希望左手仅抓住剩余空间。除非我专门设置宽度，否则它不会。

因此，现在将其设置为96％，直到您真正按下屏幕为止，它看起来还可以-右div有点饿了它所需的空间。

我想我可以保留原样，但感觉不对，就像必须要说的那样：

正确的人永远是相同的； 你在左边-你得到剩下的一切

.ar-course-nav {

  cursor: pointer;

  padding: 8px 12px 8px 12px;

  border-radius: 8px;

}

.ar-course-nav:hover {

  background-color: rgba(0, 0, 0, 0.1);

}


<br/>

<br/>

<div class="ar-course-nav" style="display:flex; justify-content:space-between;">

  <div style="width:96%;">

    <div style="overflow:hidden; white-space:nowrap; text-overflow:ellipsis;">

      <strong title="Course Name Which is Really Quite Long And Does Go On a Bit But Then When You Think it's Stopped it Keeps on Going for even longer!">

                Course Name Which is Really Quite Long And Does Go On a Bit But Then When You Think it's Stopped it Keeps on Going for even longer!

            </strong>

    </div>

    <div style="width:100%; display:flex; justify-content:space-between;">

      <div style="color:#555555; margin-right:8px; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;" title="A really really really really really really really really really really really long department name">

        A really really really really really really really really really really really long department name

      </div>

      <div style="color:#555555; text-align:right; white-space:nowrap;">

        Created: 21 September 2016

      </div>

    </div>

  </div>

  <div style="margin-left:8px;">

    <strong>&gt;</strong>

  </div>

</div>