header {
  background-color: #f1f1f1; 
  text-align:center;
  padding:20px; 
  }

body {
  background-color: #99cc66;
  border: 1px solid;
            border-color:white;
            color:#333333;
            padding: 0px 50px 50px 50px;
            width: 60%;
            height:auto;
            margin-left: 20%;
            margin-right: 20%;
  color: black;
  text-align: center;
  font-family: Verdana;
}