<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="keywords" content="">
<link rel="stylesheet" href="style.css" type="text/css" />
<title>1カラムレイアウト</title>
</head>
<body>
<header></header>
<footer></footer>
</body>
</html>
@charset "utf-8";
body{
width: 100%;
margin: 0;
padding: 0;
background-color: #ccffff;
}