body{
background-color:black;
}

#con{
background-color: tomato;
border:10px;
border-color:red;
border-style:double;
width:500px;
margin-left:auto;
margin-right:auto;
  }
  
#main{
background-color:white;
color: tomato;
}

h1{
color:black;
text-align:center;
}

#nav{
  background-color:black;
  text-align:center;
  border:5px;
  border-color:tomato;
  border-style:double;
}

#nav a{
  color:white;
  }