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---
title: Global CSS
description: Learn how to customize global CSS in Chakra UI
---
:::info
Please read the [overview](/docs/theming/customization/overview) first to learn
how to properly customize the styling engine, and get type safety.
:::
## Customize
### Add global styles
Here's an example of how to customize the global CSS in Chakra UI.
```tsx title="theme.ts"
import { createSystem, defaultConfig, defineConfig } from "@chakra-ui/react"
const customConfig = defineConfig({
globalCss: {
"*::placeholder": {
opacity: 1,
color: "fg.subtle",
},
"*::selection": {
bg: "green.200",
},
},
})
export const system = createSystem(defaultConfig, customConfig)
```
### Remove global CSS
If you don't need global CSS, you can remove it by destructuring the `globalCss`
property from the default config.
```tsx title="theme.ts"
import { createSystem, defaultConfig } from "@chakra-ui/react"
const { globalCss: _, ...restConfig } = defaultConfig
export const system = createSystem(restConfig)
```
## Update provider
After customizing the global CSS, make sure to update your provider component to
use the new system.
```tsx title="components/ui/provider.tsx" /value={system}/
"use client"
import { system } from "@/components/theme"
import {
ColorModeProvider,
type ColorModeProviderProps,
} from "@/components/ui/color-mode"
import { ChakraProvider } from "@chakra-ui/react"
export function Provider(props: ColorModeProviderProps) {
return (
<ChakraProvider value={system}>
<ColorModeProvider {...props} />
</ChakraProvider>
)
}
```
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