<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<style>
html {
font-size: 30px;
color: #ffffff;
line-height: 1.5;
font-family: Arial, Helvetica;
background: #F2F2F2;
}
body {
margin: 0 auto;
padding: 0;
max- 1200px;
min- 360px;
1200px;
}
header,
nav,
footer {
height: 80px;
auto;
margin-bottom: 20px;
text-align: center;
line-height: 80px;
background-color: yellowgreen;
}
section {
display: flex;
justify-content: space-between;
100%;
}
section>article {
500px;
height: 500px;
text-align: center;
line-height: 500px;
background-color: yellowgreen;
}
footer {
margin-top: 20px;
}
</style>
<body>
<header>herder</header>
<nav>nav</nav>
<section>
<article>article</article>
<article>article</article>
</section>
<footer>footer</footer>
</body>
</html>