<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>CatPhotoApp</title>
</head>
<body>
<main>
<h1>CatPhotoApp</h1>
<section>
<h2>Cat Photos</h2>
<p>Everyone loves <a href="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg">cute cats</a> online!</p>
<p>See more <a target="_blank" href="https://freecatphotoapp.com">cat photos</a> in our gallery.</p>
<a href="https://freecatphotoapp.com"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
</section>
<section>
<h2>Cat Lists</h2>
<h3>Things cats love:</h3>
<ul>
<li>cat nip</li>
<li>laser pointers</li>
<li>lasagna</li>
</ul>
<figure>
<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/lasagna.jpg" alt="A slice of lasagna on a plate.">
<figcaption>Cats <em>love</em> lasagna.</figcaption>
</figure>
<h3>Top 3 things cats hate:</h3>
<ol>
<li>flea treatment</li>
<li>thunder</li>
<li>other cats</li>
</ol>
<figure>
<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/cats.jpg" alt="Five cats looking around a field.">
<figcaption>Cats <strong>hate</strong> other cats.</figcaption>
</figure>
</section>
<section>
<h2>Cat Form</h2>
<form action="https://freecatphotoapp.com/submit-cat-photo">
<fieldset>
<legend>Is your cat an indoor or outdoor cat?</legend>
<label><input id="indoor" type="radio" name="indoor-outdoor" value="indoor" checked> Indoor</label>
<label><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label>
</fieldset>
<fieldset>
<legend>What's your cat's personality?</legend>
<input id="loving" type="checkbox" name="personality" value="loving" checked> <label for="loving">Loving</label>
<input id="lazy" type="checkbox" name="personality" value="lazy"> <label for="lazy">Lazy</label>
<input id="energetic" type="checkbox" name="personality" value="energetic"> <label for="energetic">Energetic</label>
</fieldset>
<input type="text" name="catphotourl" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</section>
</main>
<footer>
<p>
No Copyright - <a href="https://www.freecodecamp.org">freeCodeCamp.org</a>
</p>
</footer>
</body>
</html>HTML元素
- h1-h6：标题
- p ：段落
- section：主题
- img：图片 src, alt
- a：超链接 href, target
- ul：无序列表
- li：列表项
- ol：有序列表
- figure：对象
- figcaption：说明
- em：字体倾斜
- strong：字体加粗
- form：表单 action
- input：空元素 type, name, placeholde, required, id, value, checked
- button：按钮 type
- label：关联文字和按钮 for
- fieldset：块级嵌套
- legend：块级标题
- footer：脚注