posicionamiento-absoluto.html

<!DOCTYPE html>
<html lang="es">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Posicionamiento absoluto</title>
    <style>
        body{
            height: 3000px;
            background: #ccc;        }
        .caja{
            width: 100px;
            height: 100px;
            margin: 10px;
        }
        .roja{
            background-color: tomato;
            position: absolute;
            left: 150px;
            bottom: 150px;
        }
        .azul{
            background-color: blue;
        }
        .contenedor {
            width: 400px;
            height: 400px;
            background-color: #6e6e6e;
            margin-top: 150px;
            position: absolute;
            bottom: 10px;
        }
    </style>
</head>

<body>
    <div class="contenedor">
        <div class="caja roja"></div>
    </div>
    <div class="caja azul"></div>
</body>
</html>