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<title>Width or Flex-Basis?</title>
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<h1>Width or Flex-Basis?</h1>
<p>2018-11-28</p>
<p>Creating rows and columns of elements that adapt dynamically can be a little tricky depending on the desired outcome. Let's breakdown how to solve this issue using both <code>inline-block</code> paired with <code>width</code> and <code>flex-basis</code>.</p>
<h2>Width</h2>
<p>Setting the width of the inner children to a divisible value and setting their display to <code>inline-block</code>, we are able to create self-wrapping elements:</p>
<pre><code>.width-container {
display: block;
}
.width-container__item {
display: inline-block;
width: calc(33% - 3px); /* Fix for wonky inline-block margins */
}
</code></pre>
<h3>Pros</h3>
<ul>
<li><a href="https://caniuse.com/#search=inline-block">Full browser support</a> (as far back as IE6)</li>
<li>No floats needed</li>
</ul>
<h3>Cons</h3>
<ul>
<li>Buggy <code>margin</code> workaround needed</li>
<li>Wrapped elements cannot dynamically fill remaining empty parent space</li>
</ul>
<h2>Flex-basis</h2>
<p>This is my personal preference for dynamically wrapping inner children elements. Simply set the parent as <code>display: flex</code>, allow flex-wrapping and then set the <code>flex-basis</code> of the children to any percentage value.</p>
<pre><code>.flex-container {
display: flex;
flex-wrap: wrap;
}
.flex-container__item {
flex: 1 1 auto;
flex-basis: 33%;
}
</code></pre>
<p>You will also notice the <code>flex</code> property set to <code>1 1 auto</code>. This is important if you require your wrapped elements to fill the remaining space of the parent container.</p>
<h3>Pros</h3>
<ul>
<li>No buggy margins to play with</li>
<li>Dynamically renders children to fill parent container if <code>flex</code> is set</li>
<li>Scales well across screen / device sizes</li>
</ul>
<h3>Cons</h3>
<ul>
<li>Some versions of IE struggle with <a href="https://caniuse.com/#search=flex-basis">browser support</a></li>
</ul>
<h2>CodePen Demo</h2>
<p>Feel free to play around with a slightly more stylized version of both options below:</p>
<p><a href="https://codepen.io/bradleytaunt/pen/JevaYQ">CodePen Demo: Width or flex-basis</a></p>
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