header, nav, article, section, footer, address {display:block;}
    
header{
    height:50px;
    overflow:hidden;
    background:#e1e1e1;
    background:-webkit-gradient(linear, left top, left bottom, from(#d1d1d1), to(#e1e1e1));
    background:-moz-linear-gradient(top,  #d1d1d1,  #e1e1e1);
    padding:0 5px;
    }
header h1{
    line-height:32px;
    font-size:14px;
    text-shadow:#fff 0 1px 0;
    text-align:center;
    }

nav{
    height:28px;
    overflow:hidden;
    }
nav ul{
    margin:0;
    padding:0 5px;
    width:100%;
    height:28px;
    -moz-box-shadow:inset 0 2px 2px #999;
    -webkit-box-shadow:inset 0 2px 2px #999;
    box-shadow:inset 0 2px 2px #999;
    background:#bbb;
    }
nav li{
    list-style:none;
    float:left;
    height:24px;
    line-height:24px;
    -moz-box-shadow:0 0 3px #888;
    -webkit-box-shadow:0 0 3px #888;
    box-shadow:0 0 3px #888;
    -webkit-border-bottom-right-radius:3px;
    -webkit-border-bottom-left-radius:3px;
    -moz-border-radius-bottomright:3px;
    -moz-border-radius-bottomleft:3px;
    border-bottom-right-radius:3px;
    border-bottom-left-radius:3px;
    margin:0 2px;
    width:200px;
    overflow:hidden;
    position:relative;
    background:#ccc;
    background:-webkit-gradient(linear, left top, left bottom, from(#ccc), to(#aaa));
    background:-moz-linear-gradient(top,  #ccc,  #aaa);
    }
nav li a, nav li a:visited, nav li a:hover{
    list-style:none;
    display:block;
    position:absolute;
    top:0;
    left:-2px;
    height:24px;
    line-height:24px;
    width:204px;    
    text-align:center;
    color:#333;    
    font-size:11px;
    text-shadow:#e8e8e8 0 1px 0;
    -moz-box-shadow:inset 0 1px 1px #888;
    -webkit-box-shadow:inset 0 1px 1px #888;
    box-shadow:inset 0 1px 1px #888;
    }    
nav li.selected{
    background:#e1e1e1;
    background:-webkit-gradient(linear, left top, left bottom, from(#e1e1e1), to(#d1d1d1));
    background:-moz-linear-gradient(top,  #e1e1e1,  #d1d1d1);
    }
nav li.selected a{
    -moz-box-shadow:none;
    -webkit-box-shadow:none;
    box-shadow:none;    
    }    
nav li a:focus{outline:none;}

/* style your sections here */
section{
    padding:20px;
    }