#navbar {
   position: absolute;
   width: 130px;
   left: 20px;
   top: 5em;
}

#main {
   margin-left: 150px;
   margin-right: 0px;
   top: 0px;
}

a:link {
   text-decoration: none;
}

a:visited {
   color: #4499FF;
   text-decoration: none;
}

a:hover {
   background-color: aqua
}

h1 {
   font-size: 2.0em;
   color: navy;
   text-align: center;
}

h2 {
   font-size: 1.6em;
   color: navy;
   text-align: center;
}

h3 {
   font-size: 1.2em;
   color: navy;
   text-align: center;
}