1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="color-scheme" content="dark light">
<link rel="icon" href="data:,">
<title>Animated Radio Tab Toggles</title>
<link href="/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" />
<link href="/rss.xml" type="application/rss+xml" rel="alternate" title="RSS feed for blog posts" />
<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>
</head>
<nav>
<a href="#menu">Menu ↓</a>
</nav>
<main>
<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><div class="radio-toggles">
<input type="radio" id="option-1" name="radio-options">
<label for="option-1">One-Time</label>
<input type="radio" id="option-2" name="radio-options" checked>
<label for="option-2">Recurring</label>
<input type="radio" id="option-3" name="radio-options">
<label for="option-3">Free</label>
<div class="slide-item"></div>
</div>
</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’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’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>
<footer role="contentinfo">
<h2>Menu Navigation</h2>
<ul id="menu">
<li><a href="/">Home</a></li>
<li><a href="/projects">Projects</a></li>
<li><a href="/uses">Uses</a></li>
<li><a href="/wiki">Wiki</a></li>
<li><a href="/resume">Resume</a></li>
<li><a href="/colophon">Colophon</a></li>
<li><a href="/now">Now</a></li>
<li><a href="/donate">Donate</a></li>
<li><a href="/atom.xml">RSS</a></li>
<li><a href="#top">↑ Top of the page</a></li>
</ul>
<small>
Built with <a href="https://git.sr.ht/~bt/barf">barf</a>. <br>
Maintained with ♥ for the web. <br>
Proud supporter of <a href="https://usefathom.com/ref/DKHJVX">Fathom</a> & <a href="https://nextdns.io/?from=74d3p3h8">NextDNS</a>. <br>
The content for this site is <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.<br> The <a href="https://git.sr.ht/~bt/bt.ht">code for this site</a> is <a href="https://git.sr.ht/~bt/bt.ht/tree/master/item/LICENSE">MIT</a>.
</small>
</footer>
|
