猫的相册

<main>
  <h1>CatPhotoApp</h1>
  <section>
    <h2>Cat Photos</h2>
    <!-- TODO: Add link to cat photos -->
    <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://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/b3ae9d18c4e94e3bb69dd39a23658e9b~tplv-k3u1fbpfcp-jj-mark:0:0:0:0:q75.image#?w=281&#x26;h=281&#x26;s=19340&#x26;e=jpg&#x26;b=836c43" 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://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/3741d6b5b311436eb84e81ff0fda6fa3~tplv-k3u1fbpfcp-jj-mark:0:0:0:0:q75.image#?w=300&#x26;h=244&#x26;s=110533&#x26;e=jpg&#x26;b=df7422" 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://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/94294951e4f143e59e41c0f03217e786~tplv-k3u1fbpfcp-jj-mark:0:0:0:0:q75.image#?w=400&#x26;h=222&#x26;s=157835&#x26;e=jpg&#x26;b=799346" 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>

结果

相对路径和绝对路径

相对路径，指的是同一个网站下，不同文件之间的的位置定位。引用的文件位置是相对当前文件的位置而言，从而得到相对路径。

绝对路径，指的是文件的完整路径。