html, body{
    background-color: lightcyan;
    margin-top: 18%;
    margin-left: 40%;
}


html{
    display: table;
    margin: auto;  
}

h1{

    margin-left: 20px;
}

body{

display: table-cell;
vertical-align: middle;

}

div{

  background-color: hsl(96, 78%, 61%);
  border: none;
  color: white;
  padding: 35px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  border-radius: 30px;
}