* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.container {
  font-family: Arial, Helvetica, sans-serif;
  margin: 30px auto;
  width: fit-content;
  text-align: center;
  .serial {
    font-size: 50px;
    font-weight: bold;
    background-color: #eee;
    min-width: 400px;
    height: 150px;
    display: grid;
    place-items: center;
    border-radius: 6px;
    padding: 0 20px;
  }
  button {
    background-color: #e83327;
    border: none;
    outline: none;
    user-select: none;
    color: white;
    font-weight: bold;
    cursor: pointer;
    font-size: 30px;
    padding: 10px 20px;
    margin-top: 20px;
    border-radius: 12px;
    transition: background-color 0.3s;
    &:hover {
      background-color: hsl(4, 80.8%, 43.1%);
    }
  }
}