body{
  background: black;
  color: white;
}
a{
  display: block;
  padding: 7px;
}
a:hover{
  background: rgb(20, 20, 20);
}
a:active{
  bacground: green;
}

button{
  background: black;
  color: white;
  display: block;
  padding: 7px;
}
button:hover{
  background: rgb(20, 20, 20);
}
button:active{
  bacground: green;
}

h1{
  text-align: CENTER;
}