p {
font-size: 35px;
color: green;
}
<!doctype html>
<html lang="ko">
<head>
<meta charset="utf-8">
<title>CSS 예제</title>
<link rel="stylesheet" href="mystyle.css">
<style>
p {
background-color: yellow;
color: blue;
}
</style>
</head>
<body>
<p style="color:red">p요소 입니다.</p>
</body>
</html>