表单样式设计
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About This Exercise
表单是 Web 应用中最常见的交互元素。
通过本 Lab，你将学会：
- 美化文本输入框
- 设计聚焦状态样式
- 自定义按钮样式
- 美化复选框和单选框
Intermediate⏱ 25-30 min
Learning Objectives
- 掌握 input 输入框样式设计
- 学会设计 :focus 聚焦状态
- 理解 ::placeholder 伪元素
- 掌握按钮悬停和点击效果
- 了解自定义 checkbox/radio 技巧
Scenario
你正在为一个登录/注册页面设计表单样式，需要让表单美观、易用且有良好的交互反馈。
Why Do This
- CSS is fundamentally about constraining layout and visual hierarchy, not memorizing properties.
- Clarify the box model and layout rules first, then add visual polish — less rework that way.
- Writing styles as reusable patterns is more valuable than tweaking a single page.
Hands-on Practice
- Write the layout skeleton first (display/gap/align), then add colors and shadows.
- Extract repeated styles into reusable classes.
- Use validation rules to reverse-engineer the design intent of your current styles.
Common Mistakes
- Adding margin after margin to fix positioning while ignoring layout containers.
- Selectors nested too deep, causing style coupling.
- Only caring about how it looks without considering maintainability.
Deliverable
A reusable component style template (layout rules + visual rules + naming conventions).
My Progress
Completed Steps0 / 4
Total Attempts0
Best Score0%
Completion Criteria (Checkable)
Confirm before completing this Lab
Reflection Questions (Recommended)
What was your main layout decision? Why did you choose it?
What change did you make specifically for maintainability?
What would you prioritize improving next time?
Tags
CSS表单UI用户体验