html { 
  background: url(../plaatjes/aa3.jpeg);
}
body, html { 
  margin-left: 4ex;
  margin-right: 4ex;
  padding-top: 0px;
  margin-top: 0px;
  font-family: sans-serif
}
a { 
  text-decoration: none;
  font-style: italic;
}

h1 { 
  margin-top: 0px;
  padding-top: 1ex;
  padding-bottom: 1ex;
  text-align: center;
  background-color: #a6a;
  border-bottom: white 5px solid;
  
}