body{
  background-color:#E3C5AF;
}
.back
{
  position:absolute;
  top:0;
  left:0;
  width:15%;
  padding:20px;
}
a
{
  text-decoration:none;
  color:#003F45;
}
.main
{
  width: 60%;
  height: 10%;
  position:absolute;
  top:40%;
  right:20%;
  left:20%;
  bottom:40%;
  font-size: 30px;
}