nativewind/apps/website/docs/core-concepts/platforms.md

Platforms

Styling per platform

Styles can be applied selectively per platform using a platform variant. Additionally the native variant can be used to target all platforms except for web.

Variants
ios
android
web
windows
macos

import { Text, View } from 'react-native';
import { styled } from 'nativewind';

const StyledView = styled(View)
const StyledText = styled(Text)

const App = () => {
  return (
    <StyledView className="flex-1 items-center justify-center">
      <StyledText className={`
        ios:text-red-500
        android:text-blue-500
        web:text-green-600
      `}>
        Text color changes per Platform! 🎉
      </StyledText>
    </StyledView>
  );
}