freeCodeCamp

2.9 KiB

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id	title	challengeType	videoUrl	localeTitle
587d7788367417b2b2512aa2	Make Screen Reader Navigation Easier with the nav Landmark	0		使用导航Landmark使屏幕阅读器导航更轻松

Description

nav元素是另一个HTML5项目，具有嵌入的地标功能，便于屏幕阅读器导航。此标记用于包围页面中的主导航链接。如果页面底部有重复的站点链接，则没有必要标记带有nav标签的链接。使用footer （在下一个挑战中涵盖）就足够了。

Instructions

Camper Cat在他的训练页面顶部包含了导航链接，但是将它们包裹在一个div 。将div更改为nav标记以改善其页面上的可访问性。

Tests

tests:
  - text: 您的代码应该有一个<code>nav</code>标记。
    testString: 'assert($("nav").length == 1, "Your code should have one <code>nav</code> tag.");'
  - text: 你的<code>nav</code>标签应该包裹<code>ul</code>及其列表项。
    testString: 'assert($("nav").children("ul").length == 1, "Your <code>nav</code> tags should wrap around the <code>ul</code> and its list items.");'
  - text: 您的代码不应包含任何<code>div</code>标记。
    testString: 'assert($("div").length == 0, "Your code should not have any <code>div</code> tags.");'
  - text: 确保您的<code>nav</code>元素具有结束标记。
    testString: 'assert(code.match(/<\/nav>/g) && code.match(/<\/nav>/g).length === code.match(/<nav>/g).length, "Make sure your <code>nav</code> element has a closing tag.");'

Challenge Seed

<body>
  <header>
    <h1>Training with Camper Cat</h1>

    <div>
      <ul>
        <li><a href="#stealth">Stealth &amp; Agility</a></li>
        <li><a href="#combat">Combat</a></li>
        <li><a href="#weapons">Weapons</a></li>
      </ul>
    </div>

  </header>
  <main>
    <section id="stealth">
      <h2>Stealth &amp; Agility Training</h2>
      <article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
      <article><h3>No training is NP-complete without parkour</h3></article>
    </section>
    <section id="combat">
      <h2>Combat Training</h2>
      <article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
      <article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
    </section>
    <section id="weapons">
      <h2>Weapons Training</h2>
      <article><h3>Swords: the best tool to literally divide and conquer</h3></article>
      <article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
    </section>
  </main>
</body>

Solution

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Description

Instructions

Tests

Challenge Seed

Solution

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Raw Blame History