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HTML 

              
                <h1><code>display: flex</code> vs <code>display: inline-flex</code></h1>
<subtitle>What's the difference?</subtitle>

<h2>Example 1: <code>display: flex</code></h2>
<p>Three containers <span class="flex-color">in this color</span> with <code>display: flex</code>, containing three child divs <span class="inline-color">in this color</span> with <code>flex: 1</code>.</p>
<p>Each <span class="flex-color">parent container</span> sits on its own line. The <span class="inline-color">three children</span> occupy an equal width.</p>
<div class="container--flex">
  <div class="flex-child"></div>
  <div class="flex-child"></div>
  <div class="flex-child"></div>
</div>
<div class="container--flex">
  <div class="flex-child"></div>
  <div class="flex-child"></div>
  <div class="flex-child"></div>
</div>
<div class="container--flex">
  <div class="flex-child"></div>
  <div class="flex-child"></div>
  <div class="flex-child"></div>
</div>

<h2>Example 2: <code>display: inline-flex</code></h2>
<p>Three containers <span class="flex-color">in this color</span> with <code>display: inline-flex</code>, containing three child divs <span class="inline-color">in this color</span> with <code>flex: 1</code> and <code>min-width: 50px</code>.</p>
<p>Each <span class="flex-color">parent container</span> sits next to the other one, since they can all fit on the same row. The width of the <span class="flex-color">parent container</span> is dependent on the size of <span class="inline-color">the children</span>, which here have been given a min-width of 50px.</p>
<div class="container--inline-flex">
  <div class="flex-child"></div>
  <div class="flex-child"></div>
  <div class="flex-child"></div>
</div>
<div class="container--inline-flex">
  <div class="flex-child"></div>
  <div class="flex-child"></div>
  <div class="flex-child"></div>
</div>
<div class="container--inline-flex">
  <div class="flex-child"></div>
  <div class="flex-child"></div>
  <div class="flex-child"></div>
</div>

<h2>Explanation</h2>
<p>An element with <code>display: flex</code> is similar to an element with <code>display: block</code>, whereby it occupies the whole row. However, its child elements can be positioned flexibly and dynamically, compared to previously-available layout properties.</p>
<p>If we change this to <code>display: inline-flex</code>, it:
  <ul>
    <li>makes the parent container display inline</li>
    <li>still applies all flex properties to the children, no differently form <code>display: flex</code></li>
  </ul>
  This means that if the child elements aren't too big, two containers with <code>display: inline-flex</code> can sit side-by-side.
</p>
<p>Other display properties also have an inline counterpart:</p> 
<ul><li><code>block</code> has <code>inline-block</code></li>
  <li><code>table</code> has <code>inline-table</code></li>
  <li>and even <code>grid</code> has <code>inline-grid</code></li>
  <p><a href="https://www.w3.org/TR/css-flexbox-1/#flex-containers">Read more about the flex display property in the W3 spec.</a></p>
!

CSS 

              
                $flexColor: #64B5F6;
$inlineColor: #F06292;

.container--inline-flex,
.container--flex {
  background-color: $flexColor;
  margin-bottom: 10px; /* just for aesthetics */
}
.container--flex {
  display: flex;
}
.container--inline-flex {
  display: inline-flex;
}
.flex-child {
  flex: 1;
  min-width: 50px;
  min-height: 50px;
  margin: 10px;
  background-color: $inlineColor;
}

.flex-color {
  color: $flexColor;
}
.inline-color {
  color: $inlineColor;
}

/* Remaining styles are just to make the demo look nice */
body {
  font-family: 'Open Sans', sans-serif;
}
code {
  background-color: #EEEEEE;
  padding: 1px 5px;
}
!

JS
!
999px

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