body {
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: #f0f0f0;
}

.container {
  text-align: center;
}

.numbers-container {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.number-ball {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: #fff;
  border: 2px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
}

#generate-btn {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border: none;
  border-radius: 5px;
  background-color: #4CAF50;
  color: white;
}