87 lines
1.8 KiB
Markdown
87 lines
1.8 KiB
Markdown
---
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id: 587d7faa367417b2b2512bd3
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title: Style D3 Labels
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challengeType: 6
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videoUrl: ''
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localeTitle: 风格D3标签
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---
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## Description
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<section id="description"> D3方法可以为条形标签添加样式。 <code>fill</code>属性设置<code>text</code>节点的文本颜色。 <code>style()</code>方法为其他样式设置CSS规则，例如“font-family”或“font-size”。 </section>
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## Instructions
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<section id="instructions">将<code>text</code>元素的<code>font-size</code>设置为25px，将文本颜色设置为红色。 </section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: 标签应该都具有红色的<code>fill</code>颜色。
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testString: assert($('text').css('fill') == 'rgb(255, 0, 0)');
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- text: 标签应该都具有25像素的<code>font-size</code> 。
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testString: assert($('text').css('font-size') == '25px');
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<body>
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<script>
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const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
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const w = 500;
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const h = 100;
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const svg = d3.select("body")
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.append("svg")
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.attr("width", w)
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.attr("height", h);
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svg.selectAll("rect")
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.data(dataset)
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.enter()
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.append("rect")
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.attr("x", (d, i) => i * 30)
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.attr("y", (d, i) => h - 3 * d)
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.attr("width", 25)
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.attr("height", (d, i) => d * 3)
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.attr("fill", "navy");
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svg.selectAll("text")
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.data(dataset)
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.enter()
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.append("text")
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.text((d) => d)
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.attr("x", (d, i) => i * 30)
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.attr("y", (d, i) => h - (3 * d) - 3)
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// Add your code below this line
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// Add your code above this line
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</script>
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</body>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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