body {
  background-color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
}

#menubar {
  background-color: #fff;
  border-radius: 15px 15px 15px 15px;
  box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.3);
  margin: 10px;
}

#menubar header {
  text-align: center;
  font-size: 3rem;
  font-weight: bolder;
  border-bottom: 2px solid #111;
  padding: 10px;
}

#menubar header a {
  color: #111;
  text-decoration: none;
  font-style: oblique;
}

#menubar ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: auto;
  background-color: #333333;
  border-radius: 0 0 15px 15px;
}

#menubar li {
  float: left;
}

#menubar nav a {
  display: block;
  color: white;
  text-align: center;
  padding: 15px;
  text-decoration: none;
  transition: 0.3s;
}

#menubar nav a:hover {
  background-color: #111;
}

#menubar::after {
  content: "";
  display: table;
  clear: both;
}