I need to tweak 4 things on my Shopify website.
1) Implement a Slide-In Cart Bar similar to www dot panateamatcha dot com - see screenshot attached (adding plus and minus buttons to adjust the product qty, insert a cart logo instead of word 'cart' on the menu bar)
2) Implement "Add to Cart" button under each product photo on homepage (similar to panatea website)
3) Lightly format the cart page (Add plus and minus buttons), formatting the layout to look nice
4) Shift the whole screen down slightly when user is visiting the website through Instagram native app (small fix).
Note: I have 2 duplicate (almost identical) sites (US & UK store) - so need your help implementing the above on both sides.