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模式 简单

Theme Toggle

Theme preference pattern for light, dark, and system mode with persistence and no-flash boot logic.

在 Lab 中打开
vanilla-js css
目标: JS HTML

代码

Theme Toggle

A robust theme integration pattern that handles user preference and system fallback safely.

Features

  • Light, dark, and system options
  • Preference persistence in localStorage
  • No-flash startup theme application
  • Accessible toggle controls