react-select css styles code example

Example: react-select customize css

const customStyles = {
  menu: (provided, state) => ({
    ...provided,
    width: state.selectProps.width,
    borderBottom: '1px dotted pink',
    color: state.selectProps.menuColor,
    padding: 20,
      background : blue
  }),

  control: (_, { selectProps: { width }}) => ({
    width: width
  }),

  singleValue: (provided, state) => {
    const opacity = state.isDisabled ? 0.5 : 1;
    const transition = 'opacity 300ms';

    return { ...provided, opacity, transition };
  }
}

  const App = () => (
    <Select
      styles={customStyles}
      width='200px'
      menuColor='red'
      options={...}
    />
  );