@ngochang29397 I believe what you need is to change the width to a smaller amount for it to show up on mobile. (I am in the midst of rewriting this library due to steep understanding requirements)
Sorry for the late reply.
@ngochang29397 SSR stands for server-side rendering which means if you set to '2' it will render 2 columns on the server-side. (This is because on server-side dom is not available and width is not available to properly calculate the size to responsive placing)