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---
title: Creating custom breakpoints
description: Learn how to create custom breakpoints in Chakra UI
publishedAt: "2024-11-15"
collection: theming
---
Custom breakpoints are defined in the `breakpoints` property of your theme.
```tsx title="components/theme.ts" /breakpoints: {/
const config = defineConfig({
theme: {
breakpoints: {
xl: "80em" ,
"2xl": "96em" ,
"3xl": "120em" ,
"4xl": "160em" ,
},
},
})
export const system = createSystem(defaultConfig, config)
```
Next, you add the new `system` to your `components/ui/provider.tsx` files
```tsx {3} /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>
)
}
```
Next, you run the CLI `typegen` command to generate the types.
```bash
npx chakra typegen ./components/theme.ts
```
> Note: You might need to restart your TypeScript server for the types to be
> picked up.
## Using the breakpoint
With that in place, you can use the breakpoints when writing responsive styles.
```tsx /"4xl"/
<Box fontSize={{ base: "sm", "4xl": "lg" }}>Hello world</Box>
```
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