通过CSS3伪类，美化Radio按钮样式
CSS3样式：
/* RADIO */
.button-holder {
width: 100%;
}
.regular-radio {
display: none;
}
.regular-radio + label {
-webkit-appearance: none;
background-color: #fafafa;
border: 1px solid #cacece;
box-shadow: 0 1px 2px rgba(0,0,0,0.05), inset 0px -15px 10px -12px rgba(0,0,0,0.05);
padding: 9px;
border-radius: 50px;
display: inline-block;
position: relative;
}
.regular-radio:checked + label:after {
content: ' ';
width: 12px;
height: 12px;
border-radius: 50px;
position: absolute;
top: 3px;
background: #99a1a7;
box-shadow: inset 0px 0px 10px rgba(0,0,0,0.3);
text-shadow: 0px;
left: 3px;
font-size: 32px;
}
代码：
<div class="button-holder">
<input type="radio" id="radio-1-1" name="radio-1-set" class="regular-radio" checked /><label for="radio-1-1"></label><br />
<input type="radio" id="radio-1-2" name="radio-1-set" class="regular-radio" /><label for="radio-1-2"></label><br />
<input type="radio" id="radio-1-3" name="radio-1-set" class="regular-radio" /><label for="radio-1-3"></label><br />
<input type="radio" id="radio-1-4" name="radio-1-set" class="regular-radio" /><label for="radio-1-4"></label><br />
</div>
