style.css

* {
    font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
    color: #777;
    font-size: 18px;
    text-align: center;
    box-sizing: border-box; 
} 

body {
    background: #777;
    width: 960px;
    margin: auto;
}

header, nav, footer {
    padding: 30px;
    background: #ebebeb;
    margin-top: 15px;
}

.section {
    background: #ebebeb;
    width: 495px;
    height: 275px;
    float: left; 
    padding: 25px;
    margin-top: 20px;
    margin-bottom: 20px;
}

.aside {
    background: #ebebeb;
    float: right;
    width: 440px;
    height: 275px;
    padding-top: 25px; 
    margin-top: 20px;
    margin-bottom: 20px; 
 
}

#article {
    background: #777;
    color: #ebebeb;
    height: 185px;
    width: 440px; 
    padding-top: 20px;
    padding-bottom: 20px;
}

#headers {
    background: #ebebeb;
    height: 40px;
    width: 385px;
    position: relative; 
    left: 6%; 
    padding: 10px; 
}

#paragraph {
    background: #ebebeb;
    height: 40px;
    width: 385px;
    position: relative;
    left: 6%;
    padding: 10px; 
    margin-top: 15px; 

}

footer {
    clear: both;
}