4.7 KiB
4.7 KiB
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
587d778a367417b2b2512aa5 | 使用 figure 元素提高图表的可访问性 | 0 | https://scrimba.com/c/cGJMqtE | 301015 | improve-chart-accessibility-with-the-figure-element |
--description--
HTML5 引入了 figure
标签以及与之相关的 figcaption
标签。 它们一起用于展示可视化信息(如:图片、图表)及其标题。 这样通过语义化对内容进行分组并配以用于解释 figure
的文字,可以极大地提升内容的可访问性。
对于图表之类的可视化数据,标题可以为屏幕阅读器用户提供简要的说明。 但是这里有一个难点,如何为屏幕阅读器用户展示那些超出屏幕可视范围(使用 CSS)的表格所表现的图表数据。
举个例子,注意 figcaption
包含在 figure
标签中,并且可以与其他标签组合使用:
<figure>
<img src="roundhouseDestruction.jpeg" alt="Photo of Camper Cat executing a roundhouse kick">
<br>
<figcaption>
Master Camper Cat demonstrates proper form of a roundhouse kick.
</figcaption>
</figure>
--instructions--
Camper Cat 正在努力创建一张条形图,用来显示每周用于隐形、战斗、武器训练的时间。 请帮助完善他的页面,将他用于呈现图表的 div
标签修改为 figure
标签;将用于呈现图表标题的 p
标签改为 figcaption
标签。
--hints--
应存在一个 figure
标签。
assert($('figure').length == 1);
应存在一个 figcaption
标签。
assert($('figcaption').length == 1);
不应存在 div
标签。
assert($('div').length == 0);
不应存在 p
标签。
assert($('p').length == 0);
figcaption
应为 figure
的子标签。
assert($('figure').children('figcaption').length == 1);
确保 figure
元素有结束标签。
assert(
code.match(/<\/figure>/g) &&
code.match(/<\/figure>/g).length === code.match(/<figure>/g).length
);
--seed--
--seed-contents--
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth & Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section>
<!-- Only change 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>
<!-- Only change code above this line -->
</section>
<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>
<footer>© 2018 Camper Cat</footer>
</body>
--solutions--
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth & Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section>
<figure>
<!-- Stacked bar chart will go here -->
<br>
<figcaption>Breakdown per week of time to spend training in stealth, combat, and weapons.</figcaption>
</figure>
</section>
<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>
<footer>© 2018 Camper Cat</footer>
</body>