CSS3-实现单选框radio的小动画

在微信上看到一个教程文，觉得制作的小动画还是很有意思的，自己也试验了一下。一开始动画怎么都不执行（我用的HB），因为内置浏览器对css3的不兼容。加上各种浏览器前缀后就好了。但是旋转那个效果，在HB里还是不能正常播放。

总结就是：1，学习到了css3的伪类选择器还可以这样用！2，css3的动画设置还可以这样搭配！3，label可以替代radio。如果正常情况下让我想一个给radio

加动画的方法，我肯定不会想到把radio隐藏的！这是欲擒故纵啊。。。。

以下是代码：

<div class="radio1">
            <h1>缩放动画</h1>
            <input type="radio" name="ys" id="r1" />
            <label for="r1"></label>
            <input type="radio" name="ys" id="r2" />
            <label for="r2"></label>
            <input type="radio" name="ys" id="r3" />
            <label for="r3"></label>
        </div>
        <div class="radio2">
            <h1>旋转动画</h1>
            <input type="radio" name="ys2" id="r4" />
            <label for="r4"></label>
            <input type="radio" name="ys2" id="r5" />
            <label for="r5"></label>
            <input type="radio" name="ys2" id="r6" />
            <label for="r6"></label>
        </div>

<style type="text/css">
            body {
                background-color: #EEEEEE;
            }
            h1{
                color: #DC143C;
            }
            div {
                border: 1px solid #DC143C;
                border-radius: 12px;
                margin-top: 10px;
                padding: 10px;
                text-align: center;
            }
            
            .radio1 label {
                display: inline-block;
                position: relative;
                width: 28px;
                height: 28px;
                border: 1px solid #ccc;
                background-color: #FFF;
                cursor: pointer;
                border-radius: 50%;
                margin-top: 10px;
            }
            /*核心就是把label变成了单选框的样式，把radio隐藏起来，因为选中label就会选中对应的额radio，所以用户不必直接选radio了，而是通过label变相的来选中radio。但好处就是label可以加动画样式。*/
            /*给label的后边加一个动画*/
            
            .radio1 label:after {
                content: "";
                position: absolute;
                top: 4px;
                left: 4px;
                width: 20px;
                height: 20px;
                border-radius: 50%;
                background-color: #666;
                -moz-transform: scale(0);
                -webkit-transform: scale(0);
                -ms-transform: scale(0);
                -o-transform: scale(0);
                transform: scale(0);
                -moz-transition: transform .5s ease-out;
                -webkit-transition: transform .5s ease-out;
                -o-transition: transform .5s ease-out;
                -ms-transition: transform .5s ease-out;
                transition: transform .5s ease-out;
            }
            /*把小黑点做出来，缩放为0.做出来的方法，是在label的后边加上了一个空伪类，然后填充颜色*/
            
            .radio1 input[type="radio"]:checked+ label {
                /*这既是灵活运用伪类选择器和兄弟选择器了。checked表示被选中的那个radio，+表示那个radio下边的近邻label*/
                background-color: #eee;
                -moz-transition: transform .2s ease-out;
                -webkit-transition: transform .2s ease-out;
                -ms-transition: transform .2s ease-out;
                -o-transition: transform .2s ease-out;
                transition: transform .2s ease-out;
            }
            
            .radio1 input[type="radio"]:checked+ label:after {
                -moz-transform: scale(1);
                -ms-transform: scale(1);
                -webkit-transform: scale(1);
                -o-transform: scale(1);
                transform: scale(1);
                -moz-transition: transform .5s ease-out;
                -webkit-transition: transform .5s ease-out;
                -o-transition: transform .5s ease-out;
                -ms-transition: transform .5s ease-out;
                transition: transform .5s ease-out;
            }
            
            .radio1 input[type="radio"] {
                display: none;
            }
            /*radio2自己练习旋转动画*/
            .radio2 label{
                width: 30px;
                height: 30px;
                background-color: coral;
                display: inline-block;
                border-radius: 50%;
                border: 1px solid #D2B48C;
                margin-right: 5px;
                position: relative;
                cursor: pointer;
                overflow: hidden;/*///*/
            }
            .radio2 label:after{
                content: "";
                width: 20px;
                height: 20px;
                background-color: #90EE90;
                position: absolute;
                top: 5px;
                left: 5px;
                border-radius: 50%;
                -webkit-transform: rotate(-80deg);
                -moz-transform: rotate(-180deg);
                -ms-transform: rotate(-180deg);
                -o-transform: rotate(-180deg);
                transform: rotate(-180deg);
                -webkit-transform-origin: -10px 50%;
                -moz-transform-origin: -10px 50%;
                -ms-transform-origin: -10px 50%;
                -o-transform-origin: -10px 50%;
                transform-origin: -3px 50%;
                -webkit-transition: transform .7s ease-out;
                -moz-transition: transform .7s ease-out;
                -ms-transition: transform .7s ease-out;
                -o-transition: transform .7s ease-out;
                transition: transform .7s ease-out;
            }
            .radio2 input[type="radio"]:checked + label{
                background-color: #4169E1;
                -webkit-transition: background-color .7s ease-out;
                -moz-transition: background-color .7s ease-out;
                -ms-transition: background-color .7s ease-out;
                -o-transition: background-color .7s ease-out;
                transition: background-color .7s ease-out;
            }
            .radio2 input[type="radio"]:checked +label:after{
                -webkit-transform: rotate(0deg);
                -moz-transform: rotate(0deg);
                -ms-transform: rotate(0deg);
                -o-transform: rotate(0deg);
                transform: rotate(0deg);
                -webkit-transition: transform .7s ease-out;
                -moz-transition: transform .7s ease-out;
                -ms-transition: transform .7s ease-out;
                -o-transition: transform .7s ease-out;
                transition: transform .7s ease-out;
            }
            .radio2 input[type="radio"]{
                display: none;
            }
        </style>

原文作者：千里追风，原文地址：www.jianshu.com/p/cf5b4f6b0b68(来之微信公众号：前端大全)