Magic navigation menu indicator using HTML CSS and JavaScript

HTML

<head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Magic Navigation Menu Indicator using HTML CSS and Javascript</title>
    </head>

<body>
        <div class="nav-bar">
            <ul>
              <li class="nav-list active">
                <a href="#">
                  <span class="icon"><ion-icon name="home-outline"></ion-icon></span>
                  <span class="text">Home</span>
                </a>
              </li>
              <li class="nav-list">
                <a href="#">
                  <span class="icon"><ion-icon name="person-outline"></ion-icon></span>
                  <span class="text">Profile</span>
                </a>
              </li>
              <li class="nav-list">
                <a href="#">
                  <span class="icon"><ion-icon name="chatbubble-outline"></ion-icon></span>
                  <span class="text">Message</span>
                </a>
              </li>
              <li class="nav-list">
                <a href="#">
                  <span class="icon"><ion-icon name="camera-outline"></ion-icon></span>
                  <span class="text">Photos</span>
                </a>
              </li>
              <li class="nav-list">
                <a href="#">
                  <span class="icon"><ion-icon name="settings-outline"></ion-icon></span>
                  <span class="text">Settings</span>
                </a>
              </li>
              <div class="nav-indicator"></div>
            </ul>
          </div>

</html>

CSS

body,
html {
  font-family: "Intro", Arial, Helvetica, sans-serif;
  font-size: 16px;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
*,
*:before,
*:after {
  box-sizing: border-box;
}
h1,
h2,
h3,
h4,
h5,
h6,
p,
ol,
ul {
  margin: 0 0 1rem 0;
  padding: 0;
}
ol,
ul {
  list-style-type: none;
}
img {
  height: auto;
}
h1 {
  font-size: 4rem;
}
h2 {
  font-size: 3rem;
}
h3 {
  font-size: 2rem;
}
h4 {
  font-size: 1rem;
}
h5 {
  font-size: 0.8rem;
}
h6 {
  font-size: 0.6rem;
}
a {
  text-decoration: none;
}

* {
  font-family: "Poppins", sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #222327;
}

.nav-bar {
  position: relative;
  width: 400px;
  height: 70px;
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
border-radius: 5px;
}
.nav-bar ul {
  display: flex;
  width: 350px;
}
.nav-bar ul li {
  position: relative;
  width: 70px;
  z-index: 1;
}

.nav-bar ul li a {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  width: 100%;
  text-align: center;
  font-weight: 500;
}
.nav-bar ul li a .icon {
  position: relative;
  display: block;
  line-height: 75px;
  font-size: 1.5em;
  text-align: center;
  transition: 0.5s;
  color: #222327;
}
.nav-bar ul li.active a .icon {
  transform: translateY(-28px);
}
.nav-bar ul li a .text {
  position: absolute;
  color: #222327;
  font-weight: 600;
  font-size: 0.75em;
  letter-spacing: 0.05em;
  transition: 0.5s;
  opacity: 0;
  transform: translateY(20px);
}
.nav-bar ul li.active a .text {
  opacity: 1;
  transform: translateY(20px);
}
.nav-indicator {
  position: absolute;
  top: -50%;
  width: 70px;
  height: 70px;
  background: #fdfa29;
  border-radius: 50%;
  border: 6px solid #222327;
  transition: 0.5s;
}
.nav-indicator::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -22px;
  width: 20px;
  height: 20px;
  background: transparent;
  border-top-right-radius: 20px;
  box-shadow: 1px -10px 0 0 #222327;
}
.nav-indicator::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -23px;
  width: 20px;
  height: 20px;
  background: transparent;
  border-top-left-radius: 20px;
  box-shadow: -1px -10px 0 0 #222327;
}

.nav-bar ul li:nth-child(1).active ~ .nav-indicator {
  transform: translatex(calc(70px * 0));
}

.nav-bar ul li:nth-child(2).active ~ .nav-indicator {
  transform: translatex(calc(70px * 1));
}

.nav-bar ul li:nth-child(3).active ~ .nav-indicator {
  transform: translatex(calc(70px * 2));
}

.nav-bar ul li:nth-child(4).active ~ .nav-indicator {
  transform: translatex(calc(70px * 3));
}

.nav-bar ul li:nth-child(5).active ~ .nav-indicator {
  transform: translatex(calc(70px * 4));
}

JS