h1{font-size:48px}h2{font-size:36px}h3{font-size:28px}h4{font-size:22px}@media screen and (max-width:768px){h1{font-size:32px}h2{font-size:26px}h3{font-size:22px}h4{font-size:18px}}.nav li ul{width:360px}#top-menu li li a{padding:6px 20px;width:320px}