*{margin:0;
font-family:serif;}

#contendor{background-color: beige;
width: 960px;}
 
body {width: 60%;
    font-size: 16px;
    margin: 0 auto;
    background-color: darksalmon;}


nav {height: 40px;  
    width: 100%;  
    background: darksalmon;  
    font-size: 13pt;    
    font-weight: 500;  
    position: relative;}

nav ul {padding: 0;  
    margin: 0 auto;  
    width: 600px;  
    height: 40px;}  

nav li {display: inline;  
    float: left;}

nav a {color: beige;  
    display: inline-block;  
    width: 100px;  
    text-align: center;  
    text-decoration: none;  
    line-height: 40px;}

nav a:hover{background-color: rebeccapurple;} 

h1 { text-align: center;
    margin: 30px 20px 10px;
    background: 50%;}

main {margin: 30px 20px 10px;
    width: 960%;
    min-height: 50%;
    height: 200px;}

aside {margin: 30px 20px 10px;
    min-height: 50%;
    width: 960px;
    height: 200px;}

footer {min-height: 150px;
    width: 100%;
    float: left;
    background-color: darksalmon;
    margin-top: 20px;}