style.css

body{
    font-family: 'Arial', 'Helvetica Neue', Helvetica, sans-serif;
    color: #777;
    background-color: #777;
    width:960px;
    font-size: 18px;
    margin: 0 auto;
    padding-top: 20px;
}

p{
    text-align: center;
}

header,
#nav,
#section,
#aside,
footer{
    background-color: #ebebeb;
    margin: 10px;
    
}

header,
#nav,
footer{
    height: 50px;
}

#aside{
    width: 420px;
    height: 300px;
}

#section{
    width: 495px;
    height: 300px;
    float: left;
}

#aside,
#section{
    display: inline-block;
}



#article{
    color: #ebebeb;
    width: 90%;
    height: 200px;
    background-color: #777;
    margin: 0 auto;
}

#h1Block,
#pBlock{
    color: #777;
    background-color: #ebebeb;
    width: 90%;
    height: 50px;
    margin-left: 20px;
}