freeCodeCamp/curriculum/challenges/chinese/01-responsive-web-design/applied-accessibility/improve-chart-accessibility...

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---
id: 587d778a367417b2b2512aa5
title: Improve Chart Accessibility with the figure Element
challengeType: 0
videoUrl: ''
localeTitle: 使用图元素改进图表可访问性
---
## Description
<section id="description"> HTML5引入了<code>figure</code>元素以及相关的<code>figcaption</code> 。这些项目一起使用,包含可视化表示(如图像,图表或图表)及其标题。通过语义分组相关内容和提供解释<code>figure</code>的文本替代这提供了双倍的可访问性提升。对于图表等数据可视化可以使用标题简要说明视力障碍用户的趋势或结论。另一个挑战包括如何为屏幕阅读器用户在屏幕外使用CSS移动图表数据的表格版本。这是一个例子 - 请注意, <code>figcaption</code>位于<code>figure</code>标签内部,可以与其他元素组合: <blockquote> &lt;&gt; <br> &lt;img src =“roundhouseDestruction.jpeg”alt =“露营猫执行圆屋踢的照片”&gt; <br>点击<br> &lt;figcaption&gt; <br> Master Camper Cat展示了适当形式的圆屋踢。 <br> &lt;/ figcaption&gt; <br> &lt;/图&gt; <br></blockquote></section>
## Instructions
<section id="instructions"> Camper Cat正在努力创建一个堆积条形图显示每周花在隐形战斗和武器上的训练时间。通过将用于<code>figure</code>标记的<code>div</code>标签和包含标题的<code>p</code>标签更改为<code>figcaption</code>标记,帮助他更好地构建页面。 </section>
## Tests
<section id='tests'>
```yml
tests:
- text: 您的代码应该有一个<code>figure</code>标记。
testString: 'assert($("figure").length == 1, "Your code should have one <code>figure</code> tag.");'
- text: 您的代码应该有一个<code>figcaption</code>标记。
testString: 'assert($("figcaption").length == 1, "Your code should have one <code>figcaption</code> tag.");'
- text: 您的代码不应包含任何<code>div</code>标记。
testString: 'assert($("div").length == 0, "Your code should not have any <code>div</code> tags.");'
- text: 您的代码不应包含任何<code>p</code>标记。
testString: 'assert($("p").length == 0, "Your code should not have any <code>p</code> tags.");'
- text: <code>figcaption</code>应该是<code>figure</code>标签的子<code>figcaption</code>
testString: 'assert($("figure").children("figcaption").length == 1, "The <code>figcaption</code> should be a child of the <code>figure</code> tag.");'
- text: 确保您的<code>figure</code>元素有一个结束标记。
testString: 'assert(code.match(/<\/figure>/g) && code.match(/<\/figure>/g).length === code.match(/<figure>/g).length, "Make sure your <code>figure</code> element has a closing tag.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='html-seed'>
```html
<body>
<header>
<h1>Training</h1>
<nav>
<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>
</nav>
</header>
<main>
<section>
<!-- Add your code below this line -->
<div>
<!-- Stacked bar chart will go here -->
<br>
<p>Breakdown per week of time to spend training in stealth, combat, and weapons.</p>
</div>
<!-- Add your code above this line -->
</section>
<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>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>