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chali 4495ae0e28 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.
2026-03-09 14:16:22 +08:00

21 lines
406 B
CSS

body {
margin: 0;
font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}
.stage {
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background: linear-gradient(180deg, #fff7ed 0%, #fffbeb 100%);
}
.box {
padding: 28px 36px;
border-radius: 18px;
background: #ffffff;
border: 1px solid #fed7aa;
box-shadow: 0 20px 40px rgba(234, 88, 12, 0.12);
}