HTML Newsletter for Seasonal Promotions

I need a single-page HTML newsletter that spotlights our upcoming seasonal campaigns. The goal is purely promotional, so every section—from hero banner to closing call-to-action—must inspire readers to explore the new season’s range and click through to our site.

Technical notes
• Code must be responsive and render flawlessly in the latest versions of Outlook, Gmail, Apple Mail, and major mobile clients.
• Keep CSS inline and minimise external assets to ensure deliverability.
• Optimise images for fast load times; supply fall-back colours for background images.
• All links, alt text, and tracking placeholders should be clearly marked so my marketing team can swap in final URLs and UTM parameters.

Content structure
Hero banner → brief intro copy → featured products (three slots) → limited-time seasonal offer section → footer with social icons and unsubscribe link.

Deliverables
1. Commented HTML file ready to import
2. A zipped folder containing all referenced images (or placeholders).
3. A quick preview screenshot showing desktop and mobile breakpoints.

Acceptance criteria
• Passes Litmus or Email on Acid tests with no critical issues.
• Mobile viewport scales without horizontal scrolling.
• All text remains selectable; no text locked inside images.

If any clarifications are needed, let me know so we can hit the ground running.