#header {
    margin-bottom: 2em;
}

.navigation {
    list-style: none;
    font-weight: bold;
    margin-bottom: 1.5em;
    text-indent: -1em;    
}
.navigation li {
    display: inline;
    margin: 0;
    padding: 0;
}
.navigation li:before {
    content: " | ";
}
.navigation li.firstItem:before {
    content: "";
}