Hi there Tuanphan, I see you are a great tutor on all things SS!
I'm hoping you can help me - I would like to force all tablet displays to act like mobile, so they stack. In particular, I have an index page, with some images (not a gallery) on top of a background. On mobile they display beautifully stacked, but on tablet they are now very small and sit side by side.
It would be amazing if you can help with some css!
Many thanks. Pete
Please send to my email, include link to the page in your question. I will check carefully tomorrow.