<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="css/layoutflex.css">
</head>
<body>
<header>
<h1>Cabecera</h1>
</header>
<main>
<aside>
<ul>
<li>aaaa</li>
<li>aaaa</li>
<li>aaaa</li>
<li>aaaa</li>
</ul>
</aside>
<section>
<h1>Contenido</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Hic, esse! Hic magni voluptate quia, ut eligendi
pariatur deleniti. Numquam, perspiciatis. Eius soluta ipsam qui nisi, ea cum quod atque pariatur?</p>
</section>
</main>
<footer>
<p>Pie de página</p>
</footer>
</body>
</html>
main{
display: flex;
}
@media (max-width:728px){
main{
flex-direction: column;
}
}
@media (max-width:400px){
footer,aside{
display: none;
}
}
