영상
개념
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
/*
CSS 선택자(selector)
1. 태그 선택자
2. 클래스 선택자
3. 아이디 선택자
4. 그룹 선택자
*/
h1, h2 {
color: red;
}
.blue-h1 {
color: blue;
}
#yellow-h1 {
color: yellow;
}
</style>
</head>
<body>
<h1>Hello, CSS</h1>
<h1 class="blue-h1">Hello, CSS</h1>
<h1 class="blue-h1">Hello, CSS</h1>
<h1 class="blue-h1">Hello, CSS</h1>
<h1 id="yellow-h1">Hello, CSS</h1>
<h2>Hello, CSS</h2>
</body>
</html>
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