body {
  background-color: yellowgreen;
}

h1 {
  color: lawngreen;
  background-color: darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
}
h2 {
  color: rgb(0, 255, 157);
  background-color: darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
  font-size: 40px;
}
h3 {
  color:lightseagreen;
  background-color:darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
  font-size: 50px;
}

h4 {
  color:gold;
  background-color:darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
  font-size: 50px;
}
h5 {
  color:lightcoral;
  background-color:darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
  font-size: 50px;
}
h6 {
  color:lightgreen;
  background-color:darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
  font-size: 60px;
}

h1 {
  color: lawngreen;
  background-color: darkgreen;
  border: 5px solid goldenrod;
  text-align: center;
}