I want to tweak my current Tumblr theme so the blog opens with a smart, responsive showcase of my ten most-liked posts. The section should sit right at the top of the page and work like this: • On initial load only the first three posts appear in a neat, uniform grid. • When any part of that strip is clicked, the block slides down to reveal the remaining seven, completing the full top-ten lineup. • No arrows, dots, or other navigation controls—just the single, tap-to-expand motion. Please work directly in the theme HTML/CSS using Tumblr’s native variables (note_count, post_url, thumbnail, etc.) so the list updates automatically as note counts change. The finished code has to be fully responsive, play nicely with my existing styling, and drop straight into the Customize → Edit HTML panel without breaking any current functionality. Once you’re done, send me the final snippet and brief install notes so I can test and publish.