1，起因
最近在工作中要实现自定义式的radio样式，而我们通常使用的时默认的样式，因为自己实在想不到解决的方法，于是开始搜索，最终看到了不错的解决办法，可以完美解决我们遇到的问题。
2，原理
大家都知道在写结构的时候，radio或checkbox都会跟随label一起使用，label的for属性值和input的id值相同的情况下，点击label就可以选中input，这里正是利用label 来覆盖我们的input默认样式，通过给label添加背景图片（美化的checkbox或radio），也就是在点击的过程中，我们是看不到默认的input的（给input设置z-index:-1），而点击的是label，通过不同的事件，加载不同的背景图片（这里是改变背景图片的位置）
3，设置美化checkbox或radio的默认样式
（1）页面结构
<form class="form" method="post">
<fieldset>
<legend>Which genres do you like?</legend>
<input type="checkbox" value="action" id="check-1" name="genre"><label for="check-1" class="">Action / Adventure</label>
<input type="checkbox" value="comedy" id="check-2" name="genre"><label for="check-2" class="">Comedy</label>
<input type="checkbox" value="epic" id="check-3" name="genre"><label for="check-3" class="">Epic / Historical</label>
<input type="checkbox" value="science" id="check-4" name="genre"><label for="check-4" class="">Science Fiction</label>
<input type="checkbox" value="romance" id="check-5" name="genre"><label for="check-5" class="">Romance</label>
<input type="checkbox" value="western" id="check-6" name="genre"><label for="check-6" class="">Western</label>
</fieldset>
<fieldset>
<legend>Caddyshack is the greatest movie of all time, right?</legend>
<input type="radio" value="1" id="radio-1" name="opinions"><label for="radio-1" class="">Totally</label>
<input type="radio" value="1" id="radio-2" name="opinions"><label for="radio-2" class="">You must be kidding</label>
<input type="radio" value="1" id="radio-3" name="opinions"><label for="radio-3" class="">What's Caddyshack?</label>
</fieldset>
</form>
（2）jquery code（前提必须引入jquery库）
jQuery.fn.customInput = function(){
$(this).each(function(i){
if($(this).is('[type=checkbox],[type=radio]')){
var input = $(this);
//get the associated label using the input's id
var label = $('label[for='+input.attr('id')+']');
//get type,for classname suffix
var inputType = (input.is('[type=checkbox]')) ? 'checkbox' : 'radio';
//wrap the input + label in a div
$('<div class="custom-'+ inputType +'"></div>').insertBefore(input).append(input,label);
//find all inputs in this set using the shared name attribute
var allInputs = $('input[name='+input.attr('name')+']');
//necessary for browsers that don't support the :hover pseudo class on labels
label.hover(function(){
$(this).addClass('hover');
if(inputType == 'checkbox' && input.is(':checked')) {
$(this).addClass('checkedHover');
}
},function(){
$(this).removeClass('hover checkedHover');
});
//bind custom event, trigger it, bind click,focus,blur events
input.bind('updateState',function(){
if(input.is(':checked')){
if(input.is(':radio')){
allInputs.each(function(){
$('label[for='+$(this).attr('id')+']').removeClass('checked');
});
};
label.addClass('checked');
} else {
label.removeClass('checked checkedHover checkedFocus');
}
})
.trigger('updateState')
.click(function(){
$(this).trigger('updateState');
})
.focus(function(){
label.addClass('focus');
if(inputType == 'checkbox' && input.is(':checked')) {
$(this).addClass('checkedFocus');
}
})
.blur(function(){
label.removeClass('focus checkedFocus');
});
}
});
}
引入jquery库，再引入上面的代码后，就可以执行下面的代码
$('input').customInput();
（3）生成的外层div
如果你的代码结构是label和input成对写的话，那么在它们的外层就会生成一个div，如图
aaarticlea/png;base64,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" alt="" />
（4）设置自定义默认样式
准备好一张图，如下：
aaarticlea/png;base64,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" alt="" />
你可能会问，为什么上面没有在顶端，而是有一定的距离，因为我们的input选项多是居中的，而我们是使用label的背景图片来模拟的，所以我们是为了让input选项居中显示。总之：ico小图标一定要垂直排列，一定要留有一定的距离来达到居中显示。
/* wrapper divs */
.custom-checkbox,
.custom-radio {
position: relative;
display: inline-block;
}
/* input, label positioning */
.custom-checkbox input,
.custom-radio input {
position: absolute;
left: 2px;
top: 3px;
margin: 0;
z-index: -1;
}
.custom-checkbox label,
.custom-radio label {
display: block;
position: relative;
z-index: 1;
font-size: 1.3em;
padding-right: 1em;
line-height: 1;
padding: .5em 0 .5em 30px;
margin: 0 0 .3em;
cursor: pointer;
}
这是最外层的一些设置，当然你可以自己修改
/* ==默认状态效果== */
.custom-checkbox label {
background: url(images/checkbox.gif) no-repeat;
}
.custom-radio label {
background: url(images/button-radio.png) no-repeat;
}
.custom-checkbox label,
.custom-radio label {
background-position: 0px 0px;
}
/*==鼠标悬停和得到焦点状态==*/
.custom-checkbox label.hover,
.custom-checkbox label.focus,
.custom-radio label.hover,
.custom-radio label.focus {
/*background-position: -10px -114px;*/
} /*==选中状态==*/
.custom-checkbox label.checked,
.custom-radio label.checked {
background-position: 0px -47px;
}
.custom-checkbox label.checkedHover,
.custom-checkbox label.checkedFocus {
/*background-position: -10px -314px;*/
}
.custom-checkbox label.focus,
.custom-radio label.focus {
outline: 1px dotted #ccc;
}
结尾：总之，我是完美的解决了我的问题，顺便截图发一个看看
aaarticlea/png;base64,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" alt="" />