header{
   text-align:center; 
    background-image:url("https://codehs.com/uploads/5700ba84a65e445d89811fbf2842e83e");
    background-position:fixed;
    background-size:100% 100%;
    height:20em;
    padding:3em;
    border-radius:20px;
    font-style:bold;
}


h1{
    background-color:#BEE9E8;
    color:#1B4965;
    border-radius:20px;
    font-size:50;
    margin-top:100px;
    display:inline;
}

h2{
    color:#1B4965;
    text-align:center;
    background-color:#BEE9E8;
}

.center {
  display: block;
  
  margin-left: auto;
  
  margin-right: auto;
  
  width: 25%;
  
  border-style:inset;
}
body {
    background-color:#CAE9FF;
}

li{
    font-size:25px;
}
footer{
    color:#1B4965;
    margin-top:100px;
    background-color:#BEE9E8;
    text-align:center;
    border-radius:20px;
}
a:hover{
    font-size:35px;
    font-style:bold;
}