p {
  text-align: center; 
  font-size: 30px;
  color: Navy;
}

h2 {
  text-align:center; 
  font-size: 60px;
  color: Navy;
}

body {
  font-family: Garamond, serif;
}

body {
    background: White;


.center-justified {
    margin: 0 auto;
    text-align: justify;
    width: 45em;
}


img {
  border: 2px solid #03045e;
}
  
.sidenav {
  height: 100%; 
  width: 0; 
  position: fixed; 
  z-index: 1; 
  top: 0; 
  left: 0;
  background-color: #ebf2fa; 
  overflow-x: hidden; 
  padding-top: 60px; 
  transition: 0.5s; 
}

.sidenav a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #064789;
  display: block;
  transition: 0.3s;
}

.sidenav a:hover {
  color: #064789;
}

.sidenav .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}

#main {
  transition: margin-left .5s;
  padding: 20px;
}

@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 18px;}
}

<script>
function openNav() {
  document.getElementById("mySidenav").style.width = "250px";
}

function closeNav() {
  document.getElementById("mySidenav").style.width = "0";
}
</script>