import * as React from 'react'; import TextField from '@material-ui/core/TextField'; import { DateTimePicker } from '@material-ui/pickers'; import { createMuiTheme, ThemeProvider } from '@material-ui/core/styles'; const muiTheme = createMuiTheme({ spacing: 2, }); export default function CssThemeExample() { const [selectedDate, handleDateChange] = React.useState(); return ( } label="2px spacing" value={selectedDate} onChange={(date) => handleDateChange(date)} /> ); }