ant-design/docs/react/faq.en-US.md

---
order: 11
title: FAQ
---

Here are the frequently asked questions about Ant Design and antd that you should look up before you ask in the community or create a new issue. We also maintain a [FAQ issues label](http://u.ant.design/faq) for common github issues.

---

### Will you provide Sass/Stylus(etc.) style files in addition to the Less style files currently included?

There is currently no plan to add support for Sass/Stylus(etc.) style files, but using tools on Google you can easily convert the provided Less files to your desired style format.

### `Select Dropdown DatePicker TimePicker Popover Popconfirm` disappears when I click another popup component inside it. How do I resolve this?

This is an old bug that has been fixed since `v3.11.x`. If you're using an older version, you can use `<Select getPopupContainer={trigger => trigger.parentElement}>` to render a component inside Popover. (Or other `getXxxxContainer` props)

https://ant.design/components/select/#Select-props

Related issue: [#3487](https://github.com/ant-design/ant-design/issues/3487) [#3438](https://github.com/ant-design/ant-design/issues/3438)

### How do I prevent `Select Dropdown DatePicker TimePicker Popover Popconfirm` scrolling with the page?

Use `<Select getPopupContainer={trigger => trigger.parentElement}>` ([API reference](/components/select/#Select-props)) to render a component inside the scroll area. If you need to config this globally in your application, try `<ConfigProvider getPopupContainer={trigger => trigger.parentElement}>` ([API reference](/components/config-provider/#API))

And make sure that parentElement is `position: relative` or `position: absolute`.

Related issue: [#3487](https://github.com/ant-design/ant-design/issues/3487) [#3438](https://github.com/ant-design/ant-design/issues/3438)

### How do I modify the default theme of Ant Design?

See: https://ant.design/docs/react/customize-theme .

### How do I modify `Menu`/`Button`(etc.)'s style?

While you can override a component's style, we don't recommend doing so. antd is not only a set of React components, but also a design specification as well.

### How do I replace Moment.js with Day.js to reduce bundle size？

Please refer to [Replace Moment.js](/docs/react/replace-moment).

### It doesn't work when I change `defaultValue` dynamically.

The `defaultXxxx` (e.g. `defaultValue`) of `Input`/`Select`(etc...) only works on the first render. It is a specification of React. Please read [React's documentation](https://facebook.github.io/react/docs/forms.html#controlled-components).

### Why does modifying props in mutable way not trigger a component update?

antd use shallow compare of props to optimize performance. You should always pass the new object when updating the state. Please ref [React's document](https://reactjs.org/docs/thinking-in-react.html)

### After I set the `value` of an `Input`/`Select`(etc.) component, the value cannot be changed by user's action.

Try `onChange` to change `value`, and please read [React's documentation](https://reactjs.org/docs/forms.html#controlled-components).

### Components are not vertically aligned when placed in single row.

Try [Space](https://ant.design/components/space/) component to make them aligned.

### antd overrides my global styles

Yes, antd is designed to help you develop a complete background application. To do so, we override some global styles for styling convenience, and currently these cannot be removed or changed. More info at https://github.com/ant-design/ant-design/issues/4331 .

Alternatively, follow the instructions in [How to avoid modifying global styles?](/docs/react/customize-theme#How-to-avoid-modifying-global-styles)

### I cannot install `antd` and `antd`'s dependencies in mainland China.

To potentially solve this, try [cnpm](http://npm.taobao.org/).

### I set `dependencies.antd` as the git repository in `package.json`, but it doesn't work.

Please install `antd` with either npm or yarn.

### `message` and `notification` is lower case, but other components are capitalized. Is this a typo?

No, `message` is just a function, not a React Component, thus it is not a typo that it is in lower case.

### `antd` doesn't work well in mobile.

Please check [And Design Mobile](http://mobile.ant.design) as a possible solution, as `antd` has not been optimized to work well on mobile. You can also try the [react-component](https://github.com/react-component/) repositories which start with 'm-' 'rn-', which are also designed for mobile.

### Does `antd` supply standalone files like 'React'?

Yes, you can [import `antd` with script tag](https://ant.design/docs/react/introduce#Import-in-Browser), but we recommend using `npm` to import `antd`, as it is simple and easy to maintain.

### I can't visit `icon` in my network environment.

You should deploy the iconfont files to your network by following this [example](https://github.com/ant-design/antd-init/tree/7c1a33cadb98f2fd8688fe527dd7f98215b9bced/examples/local-iconfont). [#1070](https://github.com/ant-design/ant-design/issues/1070)

After 3.9.x [we will also switch to using svg icons](/components/icon#svg-icons), so you won't need to deploy iconfont locally anymore as well.

### How do I extend antd's components?

If you need some features which should not be included in antd, try to extend antd's component with [HOC](https://gist.github.com/sebmarkbage/ef0bf1f338a7182b6775). [more](https://medium.com/@dan_abramov/mixins-are-dead-long-live-higher-order-components-94a0d2f9e750#.eeu8q01s1)

### How do I fix dynamic styles while using a Content Security Policy (CSP)?