* {
    margin: 0;
}
header {
    background-color: #002060;
    width: 100%;
    height: 140px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    padding-top: 20px;
    font-size: 54px;    
    color: white;
    
}

header img {
    float: left;
    margin-left: 70px;
    margin-top: 28px;
}
header h1 {
    float: left;
    margin-left: 500px;
}

nav {
  float: left;
  width: 15%;
    height: 735px;
    background-color: #002060;    
    text-align: center;
    padding-top: 25px;
    margin-left: 0px;
    color:#002060
}
  nav a {
    font-family: Impact;
    font-size: 15pt;
    color: black;
    text-decoration: none;
    display: inline-block; 
    width: 200px;
    height: 60px;
    text-align: center;
    line-height: 65px;
    background-color: #aeaeae;
    margin-bottom: 50px;
    margin-top: 600px;
}

  #nav {
    margin-top: 0px;
    width: 15%;
    height: 735px;
    background-color: #002060;    
    text-align: center;
    padding-top: 25px;
    float: right;
    margin-left: 0px;
    color:#002060
}
  footer {
    margin-top: 583px;
}

main {
  width: 70%;
  float: left;
}

main table {
  width: 100%;
  background-color: ;
}

main table td {
  text-align: center;
  width: 50%;
  height: 287px;
}

main table td a {
  background-color: #156082;
  padding: 40px;
  border-radius: 100px;
  text-decoration: none;
  color: white;

}

main table td a:hover {
  color: #002060;
  font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}