4.7 KiB
4.7 KiB
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
587d778a367417b2b2512aa5 | 使用 figure 元素提高圖表的可訪問性 | 0 | https://scrimba.com/c/cGJMqtE | 301015 | improve-chart-accessibility-with-the-figure-element |
--description--
HTML5 引入了 figure
標籤以及與之相關的 figcaption
標籤。 它們一起用於展示可視化信息(如:圖片、圖表)及其標題。 這樣通過語義化對內容進行分組並配以用於解釋 figure
的文字,可以極大地提升內容的可訪問性。
對於圖表之類的可視化數據,標題可以爲屏幕閱讀器用戶提供簡要的說明。 但是這裏有一個難點,如何爲屏幕閱讀器用戶展示那些超出屏幕可視範圍(使用 CSS)的表格所表現的圖表數據。
舉個例子,注意 figcaption
包含在 figure
標籤中,並且可以與其他標籤組合使用:
<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 正在努力創建一張條形圖,用來顯示每週用於隱形、戰鬥、武器訓練的時間。 請幫助完善他的頁面,將他用於呈現圖表的 div
標籤修改爲 figure
標籤;將用於呈現圖表標題的 p
標籤改爲 figcaption
標籤。
--hints--
應存在一個 figure
標籤。
assert($('figure').length == 1);
應存在一個 figcaption
標籤。
assert($('figcaption').length == 1);
不應存在 div
標籤。
assert($('div').length == 0);
不應存在 p
標籤。
assert($('p').length == 0);
figcaption
應爲 figure
的子標籤。
assert($('figure').children('figcaption').length == 1);
確保 figure
元素有結束標籤。
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>