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<title>Easy Toggle Switches</title>
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<h1 id="easy-toggle-switches">Easy Toggle Switches</h1>
<p>2019-02-18</p>
<p>Sometimes there is a need to use toggle elements in-place of the default <code>checkbox</code> inputs. The problem is, I tend to see a lot of developers reaching for plugins or JavaScript components in order to implement these toggles.</p>
<p><em>This is overkill</em>. You can create your own custom <code>input</code> elements to mimic toggles perfectly with just a small amount of CSS.</p>
<h2 id="what-we-will-be-building">What we will be building</h2>
<p><img src="/public/images/easy-toggle-switches.png" alt="Easy toggle switches" /></p>
<p><a href="https://codepen.io/bradleytaunt/pen/bGgbajY">Live CodePen Example</a></p>
<h2 id="the-html">The HTML</h2>
<p>The build structure for these toggles is really simple, we only need:</p>
<ul>
<li><p>a parent container to hold all our corresponding elements</p></li>
<li><p>a checkbox <code>input</code> element (which we will hide)</p></li>
<li><p>an empty label designed to represent the slider</p></li>
<li><p>a text label that references the <code>input</code> </p>
<p>/* Main toggle parent container <em>/
/</em> Checkbox input, hidden with CSS <em>/
/</em> The toggle slider element <em>/
/</em> The text label to the right of the slider */
Toggle Switch
</p></li>
</ul>
<p>And that’s everything we need for the HTML.</p>
<p><strong>ProTip:</strong> Don’t forget to increment both the <code>id</code> and <code>for</code> attributes when adding additional toggles. This seems like a no-brainer but it’s overlooked more than you think.</p>
<h2 id="the-css">The CSS</h2>
<p>To get things started we will add the styling to the <code>.toggle-switch</code> item directly (using <code>flexbox</code> in this demo for easier layout).</p>
<p><strong>Sidenote</strong>: You will notice the inclusion of CSS variables in this demo - if you are unfamiliar with how to use root variables in CSS, take a look at one of my previous posts: CSS variables.</p>
<pre><code>:root {
--primary-color: #4A90E2;
}
.toggle-switch {
align-items: center;
display: flex;
font-size: 14px;
justify-content: center;
margin: 20px 0;
}
</code></pre>
<p>Next we will hide the default browser checkbox element since we won’t be needing it:</p>
<pre><code>.toggle-input {
position: absolute;
visibility: hidden;
z-index: -1;
}
</code></pre>
<p>Let’s also add some base styling for the <code>label</code> containing the text corresponding to it’s <code>input</code> sibling:</p>
<pre><code>.toggle-label {
color: #ccc;
cursor: pointer;
font-weight: bold;
padding-left: 10px;
text-shadow: 1px 1px 0 rgba(255,255,255,0.3);
transition: ease all .3s;
}
</code></pre>
<p>Now we target the <code>.toggle-slider</code> label and add the styling for the main slider base:</p>
<pre><code>/* This is just the main slider base */
.toggle-slider {
background: #eee;
border-radius: 9999px;
box-shadow: inset 0 2px 4px rgba(0,0,0,0.1),
inset 0 4px 8px rgba(0,0,0,0.1),
0 1px 1px rgba(255,255,255,1);
cursor: pointer;
display: inline-block;
height: 20px;
position: relative;
transition: all ease .3s;
width: 40px;
}
</code></pre>
<p>We <em>could</em> include a separate element for the circle toggle switcher itself, but instead we will use the <code>:before</code> pseudo element:</p>
<pre><code>.toggle-slider:before {
background: white;
border-radius: 9999px;
box-shadow: 0 4px 8px rgba(0,0,0,0.1),
0 2px 4px rgba(0,0,0,0.2);
content:'';
height: 16px;
left: 2px;
position: absolute;
top: 2px;
transition: all ease .3s;
width: 16px;
}
</code></pre>
<h3 id="interaction">Interaction</h3>
<p>Right now we just have a static toggle that does nothing when the user interacts with it. Let’s change that by moving the pseudo element’s position based on the checkbox <code>input</code> state and updating the label text color:</p>
<pre><code>.toggle-input:checked + .toggle-slider {
background: var(--primary-color);
}
.toggle-input:checked + .toggle-slider:before {
/* Move 100% of the width minus it's own width plus initial 'left' */
left: calc(100% - 18px);
}
.toggle-input:checked ~ .toggle-label {
color: var(--primary-color);
}
</code></pre>
<p>And because we already included the <code>transition</code> property on both the base slider and label text, everything animates nicely between state changes.</p>
<h2 id="final-code">Final code</h2>
<p>To make things easier, you can find the HTML & CSS is their entirety below:</p>
<h3 id="html">HTML</h3>
<pre><code><div class="toggle-switch">
<input class="toggle-input" type="checkbox" id="toggle-1">
<label class="toggle-slider" for="toggle-1"></label>
<label class="toggle-label" for="toggle-1">Toggle Switch</label>
</div>
<div class="toggle-switch">
<input class="toggle-input" type="checkbox" id="toggle-2">
<label class="toggle-slider" for="toggle-2"></label>
<label class="toggle-label" for="toggle-2">Toggle Switch</label>
</div>
<div class="toggle-switch">
<input class="toggle-input" type="checkbox" id="toggle-3" checked>
<label class="toggle-slider" for="toggle-3"></label>
<label class="toggle-label" for="toggle-3">Toggle Switch</label>
</div>
<div class="toggle-switch">
<input class="toggle-input" type="checkbox" id="toggle-4">
<label class="toggle-slider" for="toggle-4"></label>
<label class="toggle-label" for="toggle-4">Toggle Switch</label>
</div>
</code></pre>
<h3 id="the-css-1">The CSS</h3>
<pre><code>:root {
--primary-color: #4A90E2;
}
.toggle-switch {
align-items: center;
display: flex;
font-size: 14px;
justify-content: center;
margin: 20px 0;
}
.toggle-input {
position: absolute;
visibility: hidden;
z-index: -1;
}
.toggle-slider {
background: #eee;
border-radius: 9999px;
box-shadow: inset 0 2px 4px rgba(0,0,0,0.1),
inset 0 4px 8px rgba(0,0,0,0.1),
0 1px 1px rgba(255,255,255,1);
cursor: pointer;
display: inline-block;
height: 20px;
position: relative;
transition: all ease .3s;
width: 40px;
}
.toggle-slider:before {
background: white;
border-radius: 9999px;
box-shadow: 0 4px 8px rgba(0,0,0,0.1),
0 2px 4px rgba(0,0,0,0.2);
content:'';
height: 16px;
left: 2px;
position: absolute;
top: 2px;
transition: all ease .3s;
width: 16px;
}
.toggle-input:checked + .toggle-slider {
background: var(--primary-color);
}
.toggle-input:checked + .toggle-slider:before {
left: calc(100% - 18px);
}
.toggle-label {
color: #ccc;
cursor: pointer;
font-weight: bold;
padding-left: 10px;
text-shadow: 1px 1px 0 rgba(255,255,255,0.3);
transition: ease all .3s;
}
.toggle-input:checked ~ .toggle-label {
color: var(--primary-color);
}
</code></pre>
<p>Enjoy your custom toggles!</p>
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