[React] Styled Components
const Box = styled.div` backgroundColor: "red", width: 200, height: 200, `; ❌ const Box = styled.div` background-color: red; width: 200; height: 200; `; ⭕️ const Text = styled.span` color: tomato; `; ⭕️ ❌ Adapting and Extending background-color: ${props => props.bgColor}; const B = styled(A)``; import styled from "styled-components" const Box = styled.div` background-color: ${props => props.bgCo..