<ul class="navigation">
  <li class="active">
    <a href="http://www.webqdkf.com">
      <span class="icon">
        <ion-icon name="home-outline"></ion-icon>
      </span>
      <span class="text">我的主页</span>
    </a>
  </li>
  <li>
    <a href="http://www.webqdkf.com">
      <span class="icon">
        <ion-icon name="person-outline"></ion-icon>
      </span>
      <span class="text">我的项目</span>
    </a>
  </li>
  <li>
    <a href="http://www.webqdkf.com">
      <span class="icon">
        <ion-icon name="chatbubble-outline"></ion-icon>
      </span>
      <span class="text">收件箱</span>
    </a>
  </li>
  <li>
    <a href="http://www.webqdkf.com">
      <span class="icon">
        <ion-icon name="camera-outline"></ion-icon>
      </span>
      <span class="text">我的相册</span>
    </a>
  </li>
  <li>
    <a href="http://www.webqdkf.com">
      <span class="icon">
        <ion-icon name="settings-outline"></ion-icon>
      </span>
      <span class="text">设置</span>
    </a>
  </li>
  <div class="indicator"></div>
</ul>

<script type="module" src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.esm.js"></script>
<script nomodule src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.js"></script>

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #2f363e;
}

.navigation {
  position: relative;
  min-width: 540px;
  min-height: 120px;
  border-radius: 30px;
  background: #2f363e;
  box-shadow: 25px 25px 75px rgba(0,0,0,0.25),
  10px 10px 70px rgba(0,0,0,0.25),
  inset 5px 5px 10px rgba(0,0,0,0.5),
  inset 5px 5px 20px rgba(255,255,255,0.2),
  inset -5px -5px 15px rgba(0,0,0,0.75);
  display: flex;
  justify-content: center;
  align-items: center;
}

.navigation li {
  position: relative;
  list-style: none;
  width: 80px;
  margin: 0 5px;
}

.navigation li::before {
  content: '';
  position: absolute;
  top: 35px;
  left: 50%;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #222;
  transition: 0.5s;
}

.navigation li.active::before {
  background: #0f0;
  box-shadow: 0 0 5px #0f0,
  0 0 10px #0f0,
  0 0 20px #0f0,
  0 0 30px #0f0,
  0 0 40px #0f0,
  0 0 50px #0f0;
}

.navigation li a {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-decoration: none;
}

.navigation li a .icon {
  position: absolute;
  font-size: 1.75em;
  width: 80px;
  height: 80px;
  display: flex;
  color: #aaa;
  border-radius: 50%;
  justify-content: center;
  align-items: center;
  transition: 0.5s;
  transition-delay: 0.2s;
}

.navigation li.active a .icon {
  transform: translateY(-55px);
  background: #29fd53;
  color: #fff;
  box-shadow: 5px 5px 7px rgba(0,0,0,0.25),
  inset 2px 2px 3px rgba(255,255,255,0.25),
  inset -3px -3px 5px rgba(0,0,0,0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  transition-delay: 0s;
}

.navigation li a .icon::before {
  content: '';
  position: absolute;
  inset: 10px;
  background: #2f363e;
  box-shadow: 5px 5px 5px rgba(0,0,0,0.5),
  inset 2px 2px 3px rgba(255,255,255,0.25),
  inset -3px -3px 5px rgba(0,0,0,0.5);
  border-radius: 50%;
  transform: scale(0);
  transition: 0.5s;
}

.navigation li.active a .icon::before {
  transform: scale(1);
}

.navigation li a .text {
  position: absolute;
  font-size: 0.75em;
  opacity: 0;
  transform: translateY(20px);
  transition: 0.5s;
  padding: 2px 10px;
  background: #fff;
  border-radius: 15px;
  color: #2f363e;
  box-shadow: 5px 5px 7px rgba(0,0,0,0.25),
  inset -3px -3px 5px rgba(0,0,0,0.5);
  transition-delay: 0s;
}

.navigation li.active a .text {
  opacity: 1;
  transform: translateY(10px);
  transition-delay: 0.2s;
}

const list = document.querySelectorAll('.navigation li');
function activelink(){
  list.forEach((item) =>
               item.classList.remove('active'));
  this.classList.add('active');
}
list.forEach((item) =>
             item.addEventListener('click', activelink));