feat: Add CSS layout exercises and corresponding HTML files

- Created multiple exercises under the CSS layout section, including:
  - Final page layout with CSS styles and HTML structure.
  - Display and flow concepts with examples of block, inline, and none display types.
  - Selectors and pseudo-classes with practical examples.
  - Overflow and sizing handling in CSS.
  - Grid layout basics for two-dimensional layouts.
  - Fixed and sticky positioning examples.
  - Centering techniques for common layout scenarios.

- Added README files for each exercise to outline objectives and file structures.
- Updated main README to include new sections and usage instructions.
This commit is contained in:
chali
2026-03-09 14:16:22 +08:00
commit 4495ae0e28
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# 练习 1文档骨架
## 目标
掌握一个 HTML 页面最基本的完整结构。
## 你要练什么
- `<!DOCTYPE html>`
- `<html>`
- `<head>`
- `<body>`
- `title`
- 标题和段落
## 任务
请完成一个“前端学习计划”页面,要求包含:
- 页面标题:前端学习计划
- 一级标题:我的前端学习路线
- 一段介绍文字,说明自己正在学习 HTML 结构
- 二级标题:本周目标
- 一个无序列表,至少 3 项
## 检查点
- 页面是否有完整骨架
- `title` 是否写在 `head`
- 页面内容是否都放在 `body`
- 列表项是否都写在 `li`
## 文件
- [starter.html](/Volumes/Macintosh HD 1/home/front-end-example/01-html-structure/01-document-skeleton/starter.html)
- [answer.html](/Volumes/Macintosh HD 1/home/front-end-example/01-html-structure/01-document-skeleton/answer.html)

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>前端学习计划</title>
</head>
<body>
<h1>我的前端学习路线</h1>
<p>我正在学习 HTML 结构,目标是先把页面骨架写清楚,再继续学习 CSS 和 JavaScript。</p>
<h2>本周目标</h2>
<ul>
<li>理解 HTML 基本骨架</li>
<li>掌握标题、段落和列表标签</li>
<li>独立写出一个简单页面</li>
</ul>
</body>
</html>

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>TODO</title>
</head>
<body>
<!-- 任务:
1. 写一个 h1
2. 写一段自我介绍
3. 写一个 h2
4. 写一个 ul里面至少 3 个 li
-->
</body>
</html>