<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="style.css">
<title>Блог#1</title>
</head>
<body>
<div class="container">
<header>Шапка</header>
<div class="am">
<main>Мейн</main>
<aside>Эсэйд</aside>
</div>
<footer>Подвал</footer>
</div>
</body>
</html>
body {
margin: 0px;
padding: 0px;
height: 100%;
}
.container {
display: flex;
flex-flow: wrap column;
}
header, footer {
height: 100px;
width: 100%;
background-color: #cccccc;
}
main {
height: 500px;
width: 80%;
background-color: red;
}
.am {
display: flex;
flex-direction: row-reverse;
}
<!doctype html>
<html lang="ru">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<title>Привет, мир!</title>
</head>
<body>
<h1>Привет, мир!</h1>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
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</body>
</html>
<!DOCTYPE html>
<html>
<head>
<title>about:Lopar</title>
<meta charset="UTF-8">
<style>
body {
background: url(background.png);
font-family: Constantia, Georgia;
font-size: 24px;
color: #999;
margin:0 25;
}
h1 {
font-style: italic;
font-weight: normal;
font-size: 32px;
text-shadow: 1px 1px 1px #000;
}
a {color: #999; text-decoration:none;}
a:hover {color: #333;}
</style>
</head>
<body style="text-align: center;">
<img src=mylogo.png alt="mylogo"><h1>Привт, мир! Я — Вася Пупкин!</h1><br>
[<a href="wishlist.html">хотелки</a>]
[<a href="/myblog">бложик</a>]
[<a href="portfolio.html">портфель</a>]
<p><a href="mailto:********">✉</a></p>
</body>