HTML粘性滑块导航页面Demo

HTML 代码

<!doctype html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>jQuery粘性滑块导航（响应式）</title>
    <link rel="stylesheet" href="./style.css" />
  </head>

  <body>
    <section class="et-hero-tabs">
      <h1>粘性滑块导航</h1>
      <h3>滑动内容与粘性选项卡导航</h3>
      <div class="et-hero-tabs-container">
        <a class="et-hero-tab" href="#tab-es6">ES6</a>
        <a class="et-hero-tab" href="#tab-flexbox">Flexbox</a>
        <a class="et-hero-tab" href="#tab-react">React</a>
        <a class="et-hero-tab" href="#tab-angular">Angular</a>
        <a class="et-hero-tab" href="#tab-other">Other</a>
        <span class="et-hero-tab-slider"></span>
      </div>
    </section>

    <!-- Main -->
    <main class="et-main">
      <section class="et-slide" id="tab-es6">
        <h1>ES6</h1>
        <h3>something about es6</h3>
      </section>
      <section class="et-slide" id="tab-flexbox">
        <h1>Flexbox</h1>
        <h3>something about flexbox</h3>
      </section>
      <section class="et-slide" id="tab-react">
        <h1>React</h1>
        <h3>something about react</h3>
      </section>
      <section class="et-slide" id="tab-angular">
        <h1>Angular</h1>
        <h3>something about angular</h3>
      </section>
      <section class="et-slide" id="tab-other">
        <h1>Other</h1>
        <h3>something about other</h3>
      </section>
    </main>

    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
    <script src="./script.js"></script>
  </body>
</html>

CSS 代码

a {
  text-decoration: none;
}

.et-hero-tabs,
.et-slide {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  position: relative;
  background: #eee;
  text-align: center;
  padding: 0 2em;
}
.et-hero-tabs h1,
.et-slide h1 {
  font-size: 2rem;
  margin: 0;
  letter-spacing: 1rem;
}
.et-hero-tabs h3,
.et-slide h3 {
  font-size: 1rem;
  letter-spacing: 0.3rem;
  opacity: 0.6;
}

.et-hero-tabs-container {
  display: flex;
  flex-direction: row;
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 70px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  background: #fff;
  z-index: 10;
}
.et-hero-tabs-container--top {
  position: fixed;
  top: 0;
}

.et-hero-tab {
  display: flex;
  justify-content: center;
  align-items: center;
  flex: 1;
  color: #000;
  letter-spacing: 0.1rem;
  transition: all 0.5s ease;
  font-size: 0.8rem;
}
.et-hero-tab:hover {
  color: white;
  background: rgba(102, 177, 241, 0.8);
  transition: all 0.5s ease;
}

.et-hero-tab-slider {
  position: absolute;
  bottom: 0;
  width: 0;
  height: 6px;
  background: #66b1f1;
  transition: left 0.3s ease;
}

@media (min-width: 800px) {
  .et-hero-tabs h1,
  .et-slide h1 {
    font-size: 3rem;
  }
  .et-hero-tabs h3,
  .et-slide h3 {
    font-size: 1rem;
  }

  .et-hero-tab {
    font-size: 1rem;
  }
}

JS 代码

class StickyNavigation {
  constructor() {
    this.currentId = null;
    this.currentTab = null;
    this.tabContainerHeight = 70;
    let self = this;
    $(".et-hero-tab").click(function () {
      self.onTabClick(event, $(this));
    });
    $(window).scroll(() => {
      this.onScroll();
    });
    $(window).resize(() => {
      this.onResize();
    });
  }

  onTabClick(event, element) {
    event.preventDefault();
    let scrollTop = $(element.attr("href")).offset().top - this.tabContainerHeight + 1;
    $("html, body").animate({ scrollTop: scrollTop }, 600);
  }

  onScroll() {
    this.checkTabContainerPosition();
    this.findCurrentTabSelector();
  }

  onResize() {
    if (this.currentId) {
      this.setSliderCss();
    }
  }

  checkTabContainerPosition() {
    let offset = $(".et-hero-tabs").offset().top + $(".et-hero-tabs").height() - this.tabContainerHeight;
    if ($(window).scrollTop() > offset) {
      $(".et-hero-tabs-container").addClass("et-hero-tabs-container--top");
    } else {
      $(".et-hero-tabs-container").removeClass("et-hero-tabs-container--top");
    }
  }

  findCurrentTabSelector(element) {
    let newCurrentId;
    let newCurrentTab;
    let self = this;
    $(".et-hero-tab").each(function () {
      let id = $(this).attr("href");
      let offsetTop = $(id).offset().top - self.tabContainerHeight;
      let offsetBottom = $(id).offset().top + $(id).height() - self.tabContainerHeight;
      if ($(window).scrollTop() > offsetTop && $(window).scrollTop() < offsetBottom) {
        newCurrentId = id;
        newCurrentTab = $(this);
      }
    });
    if (this.currentId != newCurrentId || this.currentId === null) {
      this.currentId = newCurrentId;
      this.currentTab = newCurrentTab;
      this.setSliderCss();
    }
  }

  setSliderCss() {
    let width = 0;
    let left = 0;
    if (this.currentTab) {
      width = this.currentTab.css("width");
      left = this.currentTab.offset().left;
    }
    $(".et-hero-tab-slider").css("width", width);
    $(".et-hero-tab-slider").css("left", left);
  }
}

new StickyNavigation();