body{
    background-color:#777;
    width: 960px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    color: #777;
}

header{
    width: 600px;
    background-color: white;
    height: 60px;
    margin-top: 15px;
    margin-left: 150px;
}

nav{
    width: 600px;
    background-color: white;
    height: 60px;
    margin-top: 30px;
    margin-left: 150px;
    margin-bottom: 15px;
}

section{
    height: 220px;
    width: 495;
    background-color: white;
    margin-left: 150px;
    float: left;
    width: 300px;
    margin-right: 30px;
}

aside{
    height: 220px;
    width: 270px;
    background-color: white;
    float: left;
    margin-bottom: 15px;
    position: relative;
}

article{
    height: 130px;
    width: 270px;
    background-color: grey;
    margin-bottom: 10px;
    margin-left: 15px;
    color:#ebebeb;
}

h4{
    height: 25px;
    width: 240px;
    background-color: white;
    margin-bottom: px;
    margin-left: 15px;
    margin-top: 10px;
    color: gray;
}

p{
    height: 25px;
    width: 240px;
    background-color: white;
    margin-bottom: 10px;
    margin-left: 15px;
    color: grey;
}

footer{
    width: 600px;
    background-color: white;
    height: 60px;
    margin-top: 10px;
    float: left;
    margin-left: 150px;
}

header, nav, section, aside, footer{
    background: #ebebeb;
}

h1, h2, h3, h4, p {
    text-align: center;
    margin-top: 10px;
}