我正在做计时器，我想把这三个按钮放在圆圈里。

<div class="circle-container">
  <button class="circle-button">按钮1</button>
  <button class="circle-button">按钮2</button>
  <button class="circle-button">按钮3</button>
</div>

.circle-container {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background-color: #ccc;
  display: flex;
  justify-content: center;
  align-items: center;
}

.circle-button {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: #fff;
  margin: 10px;
}