HTML CSS:旋转木马在气泡内添加数字

<div class="carousel">
  <div class="bubble">
    <span class="number">1</span>
  </div>
  <img src="image1.jpg" alt="Image 1">
</div>

.carousel {
  position: relative;
  width: 300px;
  height: 200px;
  overflow: hidden;
}

.bubble {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  background-color: #ff0000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.number {
  color: #ffffff;
  font-size: 16px;
  font-weight: bold;
}