body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f4f4f4}h1,h2,h3{color:#333}.container{width:80%;margin:auto;overflow:hidden}.navbar{background:#333;color:#fff;padding:10px 0}.navbar a{color:#fff;text-decoration:none;padding:10px 15px}.navbar a:hover{background:#575757}.event-list{margin:20px 0}.event-item{background:#fff;border:1px solid #ddd;margin:10px 0;padding:15px;border-radius:5px}.event-detail{background:#fff;padding:20px;border-radius:5px;margin:20px 0}.footer{text-align:center;padding:20px;background:#333;color:#fff}