HTML5 + CSS3 + JS + Bootstrap

Default Bootstrap Starter

This is a clean default page with responsive layout, custom CSS3 style variables, and JavaScript interactions.

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01

Semantic Structure

Built with semantic tags and mobile-first Bootstrap grid for reliable rendering.

02

CSS3 Variables

Uses CSS custom properties for fast theme adjustment and consistent styling.

03

Interactive JS

Includes JavaScript for theme toggling, dynamic messages, and live year display.