用css制作一个类似IOS悬浮球的样式点击悬浮球会围绕它弹出n个子选项再次点击子选项消失

以下是一个简单的实现：

HTML代码：

<div class="float-button">
  <span class="main-button"></span>
  <div class="sub-buttons">
    <a href="#">选项1</a>
    <a href="#">选项2</a>
    <a href="#">选项3</a>
    <a href="#">选项4</a>
    <a href="#">选项5</a>
  </div>
</div>

CSS代码：

.float-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
}

.main-button {
  display: block;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #007aff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

.sub-buttons {
  position: absolute;
  bottom: 70px;
  right: -100px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease-in-out;
}

.sub-buttons a {
  display: block;
  width: 40px;
  height: 40px;
  margin-bottom: 10px;
  border-radius: 50%;
  background-color: #007aff;
  color: #fff;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.3s ease-in-out;
}

.sub-buttons a:hover {
  background-color: #fff;
  color: #007aff;
  border: 2px solid #007aff;
}

.float-button:hover .sub-buttons {
  right: 0;
  opacity: 1;
  visibility: visible;
}

.float-button.active .sub-buttons {
  right: 0;
  opacity: 1;
  visibility: visible;
}

JavaScript代码：

var mainButton = document.querySelector('.main-button');
var floatButton = document.querySelector('.float-button');

mainButton.onclick = function() {
  floatButton.classList.toggle('active');
}

效果预览：

![效果预览](https://i.ibb.co/6X7sJ9j/i-OStKd-8-VZb.jpg