@import url(https://fonts.googleapis.com/css?family=Roboto+Condensed);

* {margin: 0; padding: 0;}

.contenedor {width: 600px;}

header {width: 50%;
        position: relative;
        float: left;
}

section { width: 100%;
    background: #cccaca;
    margin: 2%;
    position: relative;
    float: left;
    box-sizing: border-box;
    padding-top: 1%;
    font-family: 'Roboto Condensed', sans-serif;
}

footer {width: 5%;
        background: #fff;
    font-family: 'Roboto Condensed', sans-serif;
}