html,
body {
  background-color: #36393e;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

main {
  font-family: Arial, Helvetica, sans-serif;
  color: aliceblue;
  text-align: center;
  padding-top: 50px;
  h1 {
    margin: 0;
  }
}

.keyboard {
  display: inline-block;
  margin-top: 20px;
}

.key {
  display: inline-flex;
  background: black;
  justify-content: center;
  align-items: center;
  padding: 8px;
  margin: 2px;
  border: 1px solid #ccc;
  border-radius: 4px;
  min-width: 40px;
  text-align: center;
  user-select: none;
}

.key.active {
  background: #4caf50;
  color: white;
}

.key[data-code="Space"] {
  min-width: 200px;
}

.key[data-code="ShiftLeft"],
.key[data-code="ShiftRight"],
.key[data-code="Enter"],
.key[data-code="Backspace"],
.key[data-code="Tab"],
.key[data-code="CapsLock"] {
  min-width: 80px;
}