// scss

.app-title {
color: blue;
width: 100px;
height: 100px;
}

// React (js file)

render (){
	return (
    	<div className='app-title'> 
        	App title
        </div>
    );
}

import {styled} from 'styled-components';

const Title = styled.div`
color: blue;
width: 100px;
height: 100px;
`;


render () {
	return (
    	<Title> App title</Title>
    ); 
}