92 lines
2.7 KiB
Markdown
92 lines
2.7 KiB
Markdown
---
|
|
id: 587d7788367417b2b2512aa2
|
|
title: Make Screen Reader Navigation Easier with the nav Landmark
|
|
challengeType: 0
|
|
videoUrl: 'https://scrimba.com/c/czVwWSv'
|
|
forumTopicId: 301024
|
|
localeTitle: 使用 nav 元素使屏幕阅读器更容易导航
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
<code>nav</code>也是一个具有语义化特性的 HTML5 标签，用于呈现页面中的主导航链接。它可以使屏幕阅读器快速识别页面中的导航信息。
|
|
对于在多个页面底部出现的站点链接，不需要使用<code>nav</code>，用<code>footer</code>（在下个挑战中介绍）会更好。
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
Camper Cat 在他的忍者训练页面顶端使用了很多导航链接，但把它们写在了<code>div</code>中。请将<code>div</code>更改为<code>nav</code>标签，以提升页面的可访问性。
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: '你的代码应该有 1 个<code>nav</code>标签。'
|
|
testString: assert($('nav').length == 1);
|
|
- text: '你的<code>nav</code>标签应该包含<code>ul</code>标签及其列表项。'
|
|
testString: assert($('nav').children('ul').length == 1);
|
|
- text: '你的代码不应包含<code>div</code>标签。'
|
|
testString: assert($('div').length == 0);
|
|
- text: '确保你的<code>nav</code>标签是闭合的。'
|
|
testString: assert(code.match(/<\/nav>/g) && code.match(/<\/nav>/g).length === code.match(/<nav>/g).length);
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='html-seed'>
|
|
|
|
```html
|
|
<body>
|
|
<header>
|
|
<h1>Training with Camper Cat</h1>
|
|
|
|
<div>
|
|
<ul>
|
|
<li><a href="#stealth">Stealth & 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 & 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>
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```html
|
|
// solution required
|
|
```
|
|
|
|
</section>
|
|
|