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<title>Tabbed Content Without JavaScript</title>
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+<style>*{box-sizing:border-box;}body{font-family:sans-serif;line-height:1.33;margin:0 auto;max-width:650px;padding:1rem;}blockquote{background:rgba(0,0,0,0.1);border-left:4px solid;padding-left:5px;}img{max-width:100%;}pre{border:1px solid;overflow:auto;padding:5px;}table{text-align:left;width:100%;}.footnotes{font-size:90%;}</style>
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<main>
<h1 id="tabbed-content-without-javascript">Tabbed Content Without JavaScript</h1>
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<p>2019-01-28</p>
-
<p>Creating tabs is a fairly trivial and common practice in web design, but many times it requires JavaScript to properly implement. Fortunately it <em>is</em> possible to create tabbed content with only using CSS.</p>
-
<p><img src="/public/images/tabbed-content.png" alt="Tabbed elements with only CSS" /></p>
-
<p><a href="https://codepen.io/bradleytaunt/pen/abjmayw">Live CodePen Example</a></p>
-
<hr/>
-
<h2 id="the-html">The HTML</h2>
-
<p>The skeleton for this component is fairly basic - we just need the following structure:</p>
-
<ol>
<li><p>Parent element for each tab item</p></li>
<li><p>Default radio input</p></li>
<li><p>Label linked to corresponding input</p></li>
<li><p>Inner content associated with each tab item</p></li>
</ol>
-
<p>Full HTML for reference:</p>
-
<pre><code>&#60;div class="tabs"&#62;
&#60;div class="tab-item"&#62;
@@ -62,11 +53,8 @@
&#60;&#47;div&#62;
</code></pre>
-
<h2 id="the-css">The CSS</h2>
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<p>First, we need to set each <code>input</code>, <code>label</code> and inner content into their own parent containers:</p>
-
<pre><code>&#47;* Main parent that holds all contents *&#47;
.tabs {
height: 100%;
@@ -79,9 +67,7 @@
display: inline;
}
</code></pre>
-
<p>Next, we will hide the default <code>radio</code> input and design our labels to resemble a basic web tab element. The <code>z-index</code> property on the label is important for how we will be stacking our content on the z-axis (labels above inner content for example).</p>
-
<pre><code>&#47;* Hide the default radio inputs *&#47;
.tab-input {
position: absolute;
@@ -103,9 +89,7 @@
z-index: 0;
}
</code></pre>
-
<p>The main inner content of each tab needs to have an <code>absolute</code> position set as it&#8217;s default, since the one currently selected will switch to <code>relative</code> on mobile (more on that in a moment):</p>
-
<pre><code>&#47;* The inner tab content *&#47;
.tab-content {
background: white;
@@ -120,9 +104,7 @@
z-index: 0;
}
</code></pre>
-
<p>The final step is just telling the browser to style both the <code>label</code> and inner content of the currently selected radio <code>input</code>:</p>
-
<pre><code>&#47;* Style the currently selected tab label *&#47;
.tab-input:checked + .tab-label {
border: 1px solid #eee;
@@ -138,9 +120,7 @@
z-index: 1;
}
</code></pre>
-
<p>It&#8217;s as simple as that! For reference, here is the entire CSS file for easier access:</p>
-
<pre><code>&#47;* Main parent that holds all contents *&#47;
.tabs {
height: 100%;
@@ -203,11 +183,8 @@
z-index: 1;
}
</code></pre>
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<h2 id="dont-forget-about-mobile">Don&#8217;t forget about mobile</h2>
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<p>With only a few extra lines of CSS we can ensure that our custom tabs will stack on top of each other and look solid on mobile devices:</p>
-
<pre><code>@media(max-width:38em) {
.tab-label {
display: block;
@@ -224,13 +201,9 @@
}
}
</code></pre>
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<h2 id="one-minor-caveat">One minor caveat</h2>
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<p>Even though I&#8217;m a pretty big fan of implementing tabs this way, there is a small drawback:</p>
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<p>The <code>height</code> of the inner content doesn&#8217;t grow dynamically since it defaults as <code>absolute</code>, so a <code>min-height</code> or <code>height</code> value is required on the parent element. This could become a problem in certain situations where you don&#8217;t have the luxury of setting a static height.</p>
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<p>Other than that, enjoy building some JavaScript-free tabs!</p>
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<h2>Menu Navigation</h2>