@charset "UTF-8"
    
    
article, aside, footer, header, main, nav, section{display: block;}
html, body, h1, h2, h3, ul, li, a, p, 
article, aside, footer, header, main, nav, section{
     padding: 0;
     margin: 0;
}

.banner {
        background-color:
    darkblue;
    color: white;
            padding: 10px 20 px
}

body{
        width:960px;
    margin-left:auto;
    margin-right:auto;
    background-color:white;
    font-family:helvetica,
        arial,sans-serif;
    font-size: 15px;
    
}
nav{
    background-color:darkblue;
    
    padding: 5px;
    margin-top:1px;
}


li a{
    color: white;
}
li{
    display:inline;
}
li{
    display: inline;
    margin-left: 15px;
     margin-right: 15px;
    font-size :20px;
        font-variant: small-caps;
    font-weight: bold;
    
}
 section{
     background-color: gray;
        padding: 5px;
     margin-top: 10px
 }
article{
    background-color: white;
    margin-top: 5px;
     padding: 10px 15px;
}
main{
    width: 640px;
    float: left;
}
aside{
    background-color:gray;
    width: 270px
        float: right;
    padding: 20px;
    margin-top: 10px;
}
footer{
    clear: both;
    background-color:darkblue;
    color: white;
    padding: 5px 10;
    margin-top: 1px;

}