* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #fff;
    font-family: "Cafeteria";
    font-size: 15pt;
}

.container {
    width: 900px;
}

.topbar {
    height: 60px;
    background: #ffcd00;
    font-size: 40px;
    padding: 5px;
    border-bottom-right-radius: 10pt;
    border-bottom: 3px solid black;
    border-right: 3px solid black;
    text-shadow: 2px 2px 3px white;
}

.back {
  float: right;
  font-size: 20px;
  margin-top: 10px;
}

.main {
    display: flex;
}

.sidebar {
    width: 200px;
    background: #ffcd00;
    padding: 2pt;
    margin-top: -3px;
    border-bottom-right-radius: 10pt;
    border-right: 3px solid black;
    border-bottom: 3px solid black;
}

.nav {
    display: block;
    width: 180px;
    padding: 3pt;
    text-align: center;
    background: none;
    font-size: 40px;
    margin-bottom: 10px;
    margin-top: 3px;
    margin-left: 5px;
    text-decoration: none;
    color: black;
    text-shadow: 2px 2px 3px white;
}

.nav:hover {
    color: white; 
    text-shadow: 2px 2px 3px black;
}

.content {
    flex: 1;
    background: #fff;
    padding: 15px;
}