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	<title>Animated Radio Tab Toggles</title>
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<h1 id="animated-radio-tab-toggles">Animated Radio Tab Toggles</h1>
<p>2021-01-05</p>
<p><em>In this demo tutorial, we are making the assumption</em> that we need to create a radio slide toggle for our made-up payment options. For this we want to display 3 simple payment choices to the user:</p>
<ul>
<li>One-time payment</li>
<li>Recurring payment</li>
<li>Free tier payment</li>
</ul>
<h2 id="the-final-demo">The Final Demo</h2>
<p><a href="https://codepen.io/bradleytaunt/embed/vYXjpLO">Live CodePen</a></p>
<p>Let’s get started with the base skeleton.</p>
<h2 id="the-html">The HTML</h2>
<pre><code>&#60;div class="radio-toggles"&#62;
    &#60;input type="radio" id="option-1" name="radio-options"&#62;
    &#60;label for="option-1"&#62;One-Time&#60;&#47;label&#62;
    &#60;input type="radio" id="option-2" name="radio-options" checked&#62;
    &#60;label for="option-2"&#62;Recurring&#60;&#47;label&#62;
    &#60;input type="radio" id="option-3" name="radio-options"&#62;
    &#60;label for="option-3"&#62;Free&#60;&#47;label&#62;
    &#60;div class="slide-item"&#62;&#60;&#47;div&#62;
&#60;&#47;div&#62;
</code></pre>
<h2 id="the-css">The CSS</h2>
<p>Now for the main event – the CSS. First we want to style the wrapper that holds all of our pieces together. You can tweak this to your liking, but I prefer a simple and clean style:</p>
<pre><code>.radio-toggles {
    align-items: center;
    background: #eee;
    border: 1px solid lightgrey;
    border-radius: 9999px;
    display: flex;
    justify-content: center;
    margin: 20px auto;
    max-width: 400px;
    overflow: hidden;
    padding: 4px;
    position: relative;
}
</code></pre>
<p>Next, we “hide” (only visually) the default <code>radio</code> inputs:</p>
<pre><code>input[type="radio"] {
    left: -9999px;
    position: absolute;
    z-index: -1;
}
</code></pre>
<p>Then we give the corresponding <code>label</code> elements a little spacing and breathing room:</p>
<pre><code>label {
    cursor: pointer;
    padding: 10px 20px;
    text-align: center;
    width: 33.33%;
    z-index: 2;
}
</code></pre>
<p>Remember that <code>.slide-item</code> I referenced earlier? That element will be the visual “slider” that animates between the individual radio options. We style that like so:</p>
<pre><code>.slide-item {
    background: white;
    border-radius: 9999px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    height: calc(100% - 8px);
    left: calc(33.33% + 4px);
    position: absolute;
    width: calc(33.33% - 8px);
    transition: left .4s;
    z-index: 0;
}
</code></pre>
<p>You&#8217;ll notice the <code>left</code>, <code>height</code>, and <code>width</code> properties utilize the CSS <code>calc</code> attributes – this just gives some much needed padding and visual clean-up to the whole tabbed interface.</p>
<p>For the finishing touches, we just need to tell the <code>.slide-item</code> where to position itself based on which <code>radio</code> input is currently selected:</p>
<pre><code>input[type="radio"]:nth-of-type(1):checked ~ .slide-item {
    left: 4px;
}
input[type="radio"]:nth-of-type(3):checked ~ .slide-item {
    left: calc(66.66% + 4px);
}
</code></pre>
<p>That&#8217;s pretty much it! You now have a fully functional, animated toggle slider with just a set of simple <code>radio</code> inputs and pure CSS.</p>
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