看看效果
PixPin_2024-05-16_09-46-40.gif

HTML代码：

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>滚动页面菜单指示器导航</title>
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <header>
      <nav>
        <a href="#home" style="--clr: #f3218b" class="active">
          <span class="icon"><ion-icon name="home-outline"></ion-icon></span>
          <span class="text">Home</span>
        </a>
        <a href="#profile" style="--clr: #2196f3">
          <span class="icon"><ion-icon name="person-outline"></ion-icon></span>
          <span class="text">Profile</span>
        </a>
        <a href="#message" style="--clr: #008a1b">
          <span class="icon"
            ><ion-icon name="chatbubble-outline"></ion-icon
          ></span>
          <span class="text">Message</span>
        </a>
        <a href="#photos" style="--clr: #dc1dff">
          <span class="icon"><ion-icon name="camera-outline"></ion-icon></span>
          <span class="text">Photos</span>
        </a>
        <a href="#settings" style="--clr: #d56f1d">
          <span class="icon"
            ><ion-icon name="settings-outline"></ion-icon
          ></span>
          <span class="text">Settings</span>
        </a>
        <div class="indicator"></div>
      </nav>
    </header>
    <section id="home">Home</section>
    <section id="profile">Profile</section>
    <section id="message">Message</section>
    <section id="photos">Photos</section>
    <section id="settings">Settings</section>

    <script
      type="module"
      src="https://unpkg.com/ionicons@7.1.0/dist/ionicons/ionicons.esm.js"
    ></script>
    <script
      nomodule
      src="https://unpkg.com/ionicons@7.1.0/dist/ionicons/ionicons.js"
    ></script>
    <script>
      const sec = document.querySelectorAll("section"),
        links = document.querySelectorAll("header nav a");

      window.onscroll = () => {
        sec.forEach((section) => {
          const top = window.scrollY,
            offset = section.offsetTop,
            height = section.offsetHeight,
            id = section.getAttribute("id");
          if (top >= offset && top < offset + height) {
            links.forEach((link) => {
              link.classList.remove("active");
              document
                .querySelector("header nav a[href*=" + id + "]")
                .classList.add("active");
            });
          }
        });
      };
    </script>
  </body>
</html>

CSS代码

/*google-fonts*/
/* @import url('https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900&display=swap'); */
@import './google-fonts.css';

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
}

section {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 6em;
  font-weight: 800;
  color: rgba(255, 255, 255, .1);
  background-color: #333; 
  text-transform: uppercase;
}

section:nth-child(even) {
  background-color: #444;
}

header {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100000;
  width: 400px;
  height: 60px;
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 10px;
  filter: drop-shadow(0 15px 35px rgba(0, 0, 0, .5));
}

header nav {
  display: flex;
  width: 350px;
}

header nav a {
  position: relative;
  list-style: none;
  width: 70px;
  height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  width: 100%;
  text-align: center;
  font-weight: 500;
  z-index: 2;
}

header nav a .icon {
  position: relative;
  display: block;
  line-height: 65px;
  font-size: 1.5em;
  text-align: center;
  transition: .5s;
  color: #666;
}

header nav a.active .icon {
  transform: translateY(-32px);
  color: var(--clr);
}

header nav a .text {
  position: absolute;
  color: #fff;
  padding: 2px 7px;
  border-radius: 12px;
  font-weight: 400;
  font-size: .75em;
  letter-spacing: .05em;
  transition: .5s;
  transform: translateY(15px);
  opacity: 0;
}

header nav a.active .text {
  transform: translateY(-4px);
  background-color: var(--clr);
  opacity: 1;
}

.indicator {
  position: absolute;
  top: -35px;
  width: 70px;
  height: 70px;
  background-color: #fff;
  border-radius: 50%;
  transition: .5s;
  z-index: 1;
}

.indicator::before {
  content: '';
  position: absolute;
  top: 5px;
  left: -28px;
  width: 30px;
  height: 30px;
  background-color: transparent;
  border-radius: 50%;
  box-shadow: 15px 18px #fff;
}

.indicator::after {
  content: '';
  position: absolute;
  top: 5px;
  right: -28px;
  width: 30px;
  height: 30px;
  background-color: transparent;
  border-radius: 50%;
  box-shadow: -15px 18px #fff;
}

header nav a:nth-child(1).active ~ .indicator {
  transform: translateX(calc(70px * 0));
}

header nav a:nth-child(2).active ~ .indicator {
  transform: translateX(calc(70px * 1));
}

header nav a:nth-child(3).active ~ .indicator {
  transform: translateX(calc(70px * 2));
}

header nav a:nth-child(4).active ~ .indicator {
  transform: translateX(calc(70px * 3));
}

header nav a:nth-child(5).active ~ .indicator {
  transform: translateX(calc(70px * 4));
}

标签: css, html

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