body {
      font-family: sans-serif;
      text-align: center;
      background: #f9fafc;
      margin: 0;
      padding: 20px;
    }
    h1 { margin-bottom: 10px; }
    #keyboard {
      margin: 20px auto;
      border: 1px solid #ccc;
      border-radius: 6px;
      width: 1000px;
      height: 180px;
    }
    .keyboard-wrapper {
  display: flex;
  justify-content: center;
}

#keyboard {
  border: 1px solid #ccc;
  border-radius: 6px;
  width: 1000px;
  height: 180px;
}
.instructions {
  margin: 15px auto;
  padding: 10px 15px;
  max-width: 600px;
  background: #f0f4ff;
  border: 1px solid #ccd7ff;
  border-radius: 6px;
  text-align: center;
  font-size: 14px;
  color: #222;
}
.instructions kbd {
  background: #fff;
  border: 1px solid #bbb;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 13px;
  margin: 0 2px;
  font-family: monospace;
}