body {
    font-family: Helvetica;
    margin: 0;
}

a {
    text-decoration: none;
    color: #000;
}

.site-header { 
    border-bottom: 1px solid #ccc;
    padding: .5em 1em;
    display: flex;
    justify-content: space-between;
}

.site-identity h1 {
    font-size: 1.5em;
    margin: .6em 0;
    display: inline-block;
}

.site-navigation ul, .site-navigation li {
    margin: 0; 
    padding: 0;
}

.site-navigation li {
    display: inline-block;
    margin: 1.4em 1em 1em 1em;
}