#header {
   padding-bottom: 1em;
   margin: auto;
   text-align: center;
}

h2,h3 {
   text-align: center;
   width: 100%;
   border-bottom: 1px solid black;
}

#content {
   width: 40em;
   margin: auto;
   border: 1px solid black;
   padding: 10px;
   background-color: white;
}

body {
   background-color: #3333ff;
}