Scrollspy Bootstrap 4 - 不在 Codepen 上工作

Question

我正在尝试为我的投资组合页面使用 Bootstrap 4 Scrollspy 功能，但我无法在 Codepen 中使用它。

我在 Whosebug 上搜索了一下，发现有人在 Codeply 中使用了这个功能，here’s the link，而且效果很好。

我把代码放在了 Codepen 上，但无法运行：here’s the link。这是 HTML.

<body data-spy="scroll" data-target="#navbarCodeply" data-offset="70">
 <nav class="navbar navbar-expand-md fixed-top navbar-light bg-light">
    <div class="container">
      <a class="navbar-brand" href="#">Codeply</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCodeply">
        <span class="navbar-toggler-icon"></span>
      </button>
      <div class="collapse navbar-collapse" id="navbarCodeply">
        <ul class="nav navbar-nav">
            <a class="nav-link" href="#sec1">One</a>
            <a class="nav-link" href="#sec2">Two</a>
            <a class="nav-link" href="#sec3">Three</a>
        </ul>
      </div>
    </div>
 </nav>
 <div class="container">
   <h6 class="mb-5">Bootstrap 4 Scrollspy Example</h6>
   <div class="row">
     <div class="col-12 col-sm-8">
        <h3 id="sec1">One</h3>
        <p>Sriracha biodiesel taxidermy organic post-ironic, Intelligentsia salvia mustache 90's code editing brunch. Butcher polaroid VHS art party, hashtag Brooklyn deep v PBR narwhal sustainable mixtape swag wolf squid tote bag. Tote bag cronut semiotics,
            raw denim deep v taxidermy messenger bag. Tofu YOLO Etsy, direct trade ethical Odd Future jean shorts paleo. Forage Shoreditch tousled aesthetic irony, street art organic Bushwick artisan cliche semiotics ugh synth chillwave meditation.
            Shabby chic lomo plaid vinyl chambray Vice. Vice sustainable cardigan, Williamsburg master cleanse hella DIY 90's blog.</p>

        <p>Ethical Kickstarter PBR asymmetrical lo-fi. Dreamcatcher street art Carles, stumptown gluten-free Kickstarter artisan Wes Anderson wolf pug. Godard sustainable you probably haven't heard of them, vegan farm-to-table Williamsburg slow-carb
            readymade disrupt deep v. Meggings seitan Wes Anderson semiotics, cliche American Apparel whatever. Helvetica cray plaid, vegan brunch Banksy leggings +1 direct trade. Wayfarers codeply PBR selfies. Banh mi McSweeney's Shoreditch selfies,
            forage fingerstache food truck occupy YOLO Pitchfork fixie iPhone fanny pack art party Portland.</p>
        <hr>
        <h3 id="sec2">Two</h3>
        <p>Sriracha biodiesel taxidermy organic post-ironic, Intelligentsia salvia mustache 90's code editing brunch. Butcher polaroid VHS art party, hashtag Brooklyn deep v PBR narwhal sustainable mixtape swag wolf squid tote bag. Tote bag cronut semiotics,
            raw denim deep v taxidermy messenger bag. Tofu YOLO Etsy, direct trade ethical Odd Future jean shorts paleo. Forage Shoreditch tousled aesthetic irony, street art organic Bushwick artisan cliche semiotics ugh synth chillwave meditation.
            Shabby chic lomo plaid vinyl chambray Vice. Vice sustainable cardigan, Williamsburg master cleanse hella DIY 90's blog.</p>

        <p>Ethical Kickstarter PBR asymmetrical lo-fi. Dreamcatcher street art Carles, stumptown gluten-free Kickstarter artisan Wes Anderson wolf pug. Godard sustainable you probably haven't heard of them, vegan farm-to-table Williamsburg slow-carb
            readymade disrupt deep v. Meggings seitan Wes Anderson semiotics, cliche American Apparel whatever. Helvetica cray plaid, vegan brunch Banksy leggings +1 direct trade. Wayfarers codeply PBR selfies. Banh mi McSweeney's Shoreditch selfies,
            forage fingerstache food truck occupy YOLO Pitchfork fixie iPhone fanny pack art party Portland.</p>
        <h3 id="sec3">Three</h3>
        <p>Sriracha biodiesel taxidermy organic post-ironic, Intelligentsia salvia mustache 90's code editing brunch. Butcher polaroid VHS art party, hashtag Brooklyn deep v PBR narwhal sustainable mixtape swag wolf squid tote bag. Tote bag cronut semiotics,
            raw denim deep v taxidermy messenger bag. Tofu YOLO Etsy, direct trade ethical Odd Future jean shorts paleo. Forage Shoreditch tousled aesthetic irony, street art organic Bushwick artisan cliche semiotics ugh synth chillwave meditation.
            Shabby chic lomo plaid vinyl chambray Vice. Vice sustainable cardigan, Williamsburg master cleanse hella DIY 90's blog.</p>

        <p>Ethical Kickstarter PBR asymmetrical lo-fi. Dreamcatcher street art Carles, stumptown gluten-free Kickstarter artisan Wes Anderson wolf pug. Godard sustainable you probably haven't heard of them, vegan farm-to-table Williamsburg slow-carb
            readymade disrupt deep v. Meggings seitan Wes Anderson semiotics, cliche American Apparel whatever. Helvetica cray plaid, vegan brunch Banksy leggings +1 direct trade. Wayfarers codeply PBR selfies. Banh mi McSweeney's Shoreditch selfies,
            forage fingerstache food truck occupy YOLO Pitchfork fixie iPhone fanny pack art party Portland.</p>
    </div>
  </div>

这是 CSS。

body {
  position: relative;
  overflow-y: auto;
  padding-top: 70px; /* padding for fixed navbar */
}

如您所见，当您在 Codepen 中向下滚动时，导航项不会改变，但在 Codeply 中它们会改变。

有谁知道这是怎么回事？

在此先感谢您的帮助。

胡安·贝当古。

PS：我认为问题可能出在CSS和JavaScript笔设置或body标签属性中。

Answer 1

Bootstrap 4 需要 Popper.js..

/popper.js/1.11.0/umd/popper.min.js

当您 select "Bootstrap 4" 时，Codeply 会自动包含它，但 codepen 不会。

Scrollspy Bootstrap 4 - 不在 Codepen 上工作

Scrollspy Bootstrap 4 - Not working on Codepen

html

scrollspy

bootstrap-4

codepen