只要修改第三方图标库的前缀（具体方法参阅第三方库的文档），并编写相应的 CSS，即可在 Element 中像使用内置图标一样使用第三方图标。例如，将第三方库的前缀改为 `el-icon-my`，然后在其 CSS 文件中添加：
```css
[class^="el-icon-my"],[class*=" el-icon-my"]{
font-family:"your-font-family"!important;
/* 以下内容参照第三方图标库本身的规则 */
font-size:inherit;
font-style:normal;
-webkit-font-smoothing:antialiased;
-moz-osx-font-smoothing:grayscale;
}
```
具体使用时，和 Element 内置的图标用法一样。比如在 `el-input` 中：
```html
<el-inputicon="my-xxx"/>
```
</details>
<details>
<summary>所有组件的任意属性都支持 `.sync` 修饰符吗？</summary>
...
...
@@ -129,27 +108,6 @@ The parameter `row` is the data object of corresponding row.
Please refer to [Render Function](http://vuejs.org/v2/guide/render-function.html) in Vue's documentation. In addition, if you are writing render functions with JSX, `babel-plugin-transform-vue-jsx` is required. See [here](https://github.com/vuejs/babel-plugin-transform-vue-jsx) for its configurations.
</details>
<details>
<summary>How do I use third-party icon font library with Element?</summary>
You just need to modify the class name prefix of the third-party library (see their docs for how to do it), and write some CSS, then you can use them just like you use Element built-in icons. For example, change the prefix to `el-icon-my`, and then add the following to its CSS:
```css
[class^="el-icon-my"],[class*=" el-icon-my"]{
font-family:"your-font-family"!important;
/* The following is based on original CSS rules of third-party library */
font-size:inherit;
font-style:normal;
-webkit-font-smoothing:antialiased;
-moz-osx-font-smoothing:grayscale;
}
```
Now you can use them as you do with built-in icons. For example, in `el-input`:
```html
<el-inputicon="my-xxx"/>
```
</details>
<details>
<summary>Can I use `.sync` modifier on every attribute?</summary>
