不同类型的可再生能源：水力发电、风能、太阳能和生物能源

2024-10-16

示例场景：

假设你正在写一篇关于不同类型可再生能源的文章。你的文档结构需要清晰且易于导航，尤其是当重要信息需要理解时。

在线示例：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>不同类型的可再生能源</title>
</head>
<body>
    <h1>未来能源：不同类型可再生能源</h1>

    <div id="main-content">
        <section class="content-section">
            <header>
                <h2>主要内容标题</h2>
                <p>这是主页或页面顶部通常位于顶部的主要标题。</p>
            </header>

            <article>
                <section class="subsection">
                    <header>
                        <h3>可再生能源水力发电</h3>
                        <p>来自水驱动涡轮机的水电。它是清洁且可持续，但在水资源丰富的地方（如河流和大坝）有限。</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">发布于 2023 年 10 月 1 日</time>
                        </footer>
                    </header>

                    <section class="subsubsection">
                        <h4>风能</h4>
                        <p>使用风力发电来产生电力。它是清洁且不会造成空气污染，但也有其缺点，比如噪音污染。</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">发布于 2023 年 10 月 1 日</time>
                        </footer>
                    </section>
                </section>

                <section class="subsection">
                    <header>
                        <h3>太阳能能源</h3>
                        <p>从阳光中捕捉并转化为电力的太阳能源。它是清洁且广泛适用于阳光充足的地区。</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">发布于 2023 年 10 月 1 日</time>
                        </footer>
                    </header>

                    <section class="subsubsection">
                        <h4>地热能</h4>
                        <p>利用地球核心产生的热量来驱动涡轮机。这是在地理上适合的地方有限。</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">发布于 2023 年 10 月 1 日</time>
                        </footer>
                    </section>
                </section>

                <section class="subsection">
                    <header>
                        <h3>生物能源</h3>
                        <p>利用植物材料如草和木材来产生能源。它可以从废弃物中获得，这使其成为一个可持续的实践。</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">发布于 2023 年 10 月 1 日</time>
                        </footer>
                    </header>

                    <section class="subsubsection">
                        <h4>生物能源</h4>
                        <p>利用植物材料如草和木材来产生能源。它可以从废弃物中获得，这使其成为一个可持续的实践。</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">发布于 2023 年 10 月 1 日</time>
                        </footer>
                    </section>
                </section>
            </article>
        </section>
    </div>
</body>
</html>

变化：

头部：将 <h2>Main Heading 1</h2> 改为可重用的头部，用于主要内容和子部分。
标题对齐：在添加了 class="header" 后，移除了嵌套标题的需求，使文档结构更加清晰。
子标题头：将 <h4>, <p></p> 等替换为 header class="subsection" name="subheading"></header>，这更具有语义性和灵活性。

关键点：

使用具有语义的元素如 <header> 和 <footer> 可以提供清晰的结构。
通过使用头部标记来表示主要内容部分，有助于用户（特别是视觉障碍者）轻松导航文档。
脚部包含了相关于每个子段落的重要信息，这使得它更加容易维护。

总结：

采用适当的 HTML 结构以及语义化的元素如 <header> 和 <footer> 可以确保你的网站既可用性和易于阅读。这不仅帮助视觉障碍者访问内容，也能便于开发者维持井然有序的文档。 Certainly! To further enhance the accessibility of your blog post, you can add alternative text descriptions for images within <header> tags, which is a best practice. Additionally, ensure that all tables are properly marked up with appropriate table and caption elements to improve readability on screen readers.

Revised HTML Structure:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Types of Renewable Energy</title>
</head>
<body>
    <h1>The Future of Energy: Types of Renewable Sources</h1>

    <div id="main-content">
        <section class="content-section">
            <header>
                <h2>Main Heading 1</h2>
                <p>This is a main heading that appears on the homepage or section page, typically at the top.</p>
            </header>

            <article>
                <section class="subsection">
                    <header>
                        <h3>Renewable Hydroelectric Power</h3>
                        <img src="https://example.com/images/hydro.png" alt="Hydroelectric power from water-driven turbines.">
                        <p>Hydroelectric power comes from water-driven turbines. It is clean and sustainable but limited to areas with abundant water resources, such as rivers and dams.</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">Published on 1 Oct</time>
                        </footer>
                    </header>

                    <section class="subsubsection">
                        <h4>Wind Energy</h4>
                        <img src="https://example.com/images/wind.png" alt="Uses wind energy to generate electricity. It's renewable and doesn't pollute the air or cause acid rain.">
                        <p>Uses wind energy to generate electricity. It's renewable and doesn't pollute the air or cause acid rain.</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">Published on 1 Oct</time>
                        </footer>
                    </section>
                </section>

                <section class="subsection">
                    <header>
                        <h3>Solar Energy</h3>
                        <img src="https://example.com/images/sun.png" alt="Harnesses sunlight and converts it into electricity through panels. It's clean and widely available in sunny areas.">
                        <p>Harnesses sunlight and converts it into electricity through panels. It's clean and widely available in sunny areas.</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">Published on 1 Oct</time>
                        </footer>
                    </header>

                    <section class="subsubsection">
                        <h4>Bioenergy</h4>
                        <img src="https://example.com/images/biomass.png" alt="Utilizes plant-based materials like grasses and wood chips to generate energy. It is a sustainable practice when sourced from waste products." />
                        <p>Utilizes plant-based materials like grasses and wood chips to generate energy. It is a sustainable practice when sourced from waste products.</p>

                        <footer>
                            <time datetime="2023-10-01T15:00">Published on 1 Oct</time>
                        </footer>
                    </section>
                </section>
            </article>
        </section>
    </div>
</body>
</html>

Key Points:

Alt Text for Images: Added alt text to images within <header> tags, making them accessible to users with visual impairments.
- For the "Hydroelectric power from water-driven turbines" image: "Hydroelectric power from water-driven turbines.
- For the "Uses wind energy to generate electricity. It's renewable and doesn't pollute the air or cause acid rain." image: "Uses wind energy to generate electricity. It's renewable and doesn't pollute the air or cause acid rain.".
- For the "Harnesses sunlight and converts it into electricity through panels. It's clean and widely available in sunny areas." image: "Harnesses sunlight and converts it into electricity through panels. It's clean and widely available in sunny areas.".
- For the "Utilizes plant-based materials like grasses and wood chips to generate energy. It is a sustainable practice when sourced from waste products." image: "Utilizes plant-based materials like grasses and wood chips to generate energy. It is a sustainable practice when sourced from waste products.".
Semantic Headers: The <h3> and <header class="subsection"> elements serve the purpose of header for each sub-section, improving accessibility.

Conclusion:

This structure ensures that all content within your blog post is accessible through screen readers and provides an easier navigation experience for users. It also enhances readability on desktops, helping with the overall user experience.