## 复选框
### 基本类名
`.mui-checkbox`
> 用于复选框,必须使用在label标签上
#### 默认状态
```html
<label class="mui-checkbox">
<input type="checkbox" hidden>
<span class="icon"></span>
<span>normal</span>
</label>
```
#### 选中状态
```html
<label class="mui-checkbox">
<input type="checkbox" hidden checked>
<span class="icon"></span>
<span>normal</span>
</label>
```
#### 禁用状态
```html
<label class="mui-checkbox">
<input type="checkbox" hidden disabled>
<span class="icon"></span>
<span>normal</span>
</label>
```
#### 选中禁用状态
```html
<label class="mui-checkbox">
<input type="checkbox" hidden checked disabled>
<span class="icon"></span>
<span>normal</span>
</label>
```
