html {
        font-family: 'Open Sans', sans-serif;
    }
    
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    nav,
    code {
        font-family: 'Courier Prime', monospace;
    }
    
    h4 {
        font-weight: bold;
    }
    
    h1,
    h2,
    h3,
    h5,
    h6 {
        font-weight: normal;
    }