ReactJS (3) Global

React를 사용하다 보면 global style을 적용해야 할 때가 있는데, 이때 styled-component에서 createGlobalStyle을 사용할 수 있습니다.

예) CSS 초기화

const GlobalStyle = createGlobalStyle`
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}



`;

이런 식으로 createGlobalStyle을 가져와 적용하는 방법은 앱 구성 요소와 같은 줄에 배치하는 것입니다.

예)

const root = ReactDOM.createRoot(document.getElementById("root"));
root.render(
  <ThemeProvider theme={darkTheme}>
    <GlobalStyle />
    <App />
  </ThemeProvider>
);