iPad and iPhone drop down menu

I have created a site with Blocs 2.3.1, but was wondering if there is anyway of replicating the iPhone drop down menu style on the iPad?

On the iPhone the responsive menu that is produced takes the background colour, and dividers between each item. This looks really tidy. However, on the iPad, the responsive menu produced is plain white, no dividers and also appears to wide for the presented text.

Can anyone advise if I am doing something wrong, or something I am missing?