body {
  font-family: 'Arvo', serif;
  background-color: #ABB2B9;
}
#header {
  background-color: #566573;
  border-bottom: #18EA7E solid 5px;
  padding: 4px;
  color: #18EA7E;
  overflow: auto;
}
#header h1 {
  margin-left: 10px;
}
#header h2 {
  margin-top: 6px;
  margin-right: 10px;
}
.col-sm {
  height: 300px;
  border: #18EA7E solid 2px;
  background-color: #566573;
  border-radius: 15px;
  color: #18EA7E;
  margin: 10px;
  text-align: center;
  padding-top: 110px;
}
#keyboard {
  text-align: center;
  border: #18EA7E solid 2px;
  background-color: #566573;
  border-radius: 15px;
  color: #18EA7E;
  width: 75%;
  padding: 10px;
  margin: auto;
}
#keyboard button {
  height: 50px;
  width: 50px;
  margin: 5px;
}
#keyboard button:hover {
  background-color: #18EA7E;
}
#newGame {
  text-align: center;
  margin: 15px;
}
#newGame_button {
  background-color: #18EA7E;
  border-color: #566573;
  color: #566573;
  font-size: 25px;
  box-shadow: 0px;
}