body{font-size:16px;line-height:1.6;font-family:Roboto,sans-serif}h1,h2,h3,h4,h5,h6{font-family:Roboto Slab,serif;line-height:1.3}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}nav{max-width:768px;margin:0 auto;padding:25px 20px}nav ul{list-style:none;margin:0;padding:0;display:flex}nav li{margin-right:15px}a{text-decoration:none;color:#0066cc}a:hover{color:#0099ff}main{max-width:768px;margin:0 auto 50px;padding:0 20px}