These web controls (webContainers) has the lockBotton=true and his bottom border is on the bottom of the design webpage, but these bottom parts are putted on the middle of the page and not on bottom part of webpage
The way bootstrap adjusts for mobile screens, you can’t simply use locks to make a desktop layout size down to a phone. You’ll be better off making custom layouts for phones.
It looks like the page on a browser is much longer and a little bit wider than what you define (1800x800) but the container is set as if the page size is 800, so you can keep scrolling down to around 3000 (at least on my phone).
From your phone screenshot, it looks like the size is different.
The webpage has minimum height and width (minH 1800x minW 800)
These caracterstics of the page are valids for standard browser PC and for phone browser, in phone case the browser must shows scroll bars… but the bottom part of the control must be anchorated to the Bottom of the Page , but as Is showed on screenshots, the control Is not anchorated when Page Is showed on phone browser, but Is anchorated if i use PC browser
My phone Is Samsung galaxy fold 4 , the resolution is Minor of 1800 x 800
Set a label at 800 pixels, at least on my phone it match where the bottom of the listbox is.
There is a bug on the conversion of the WebPage you selected and the phone display area/resolution.
The anchor keep the bottom of the container/listbox near the 800 pixel size and show a scrollbar to almost 3000 pixels (this is on my phone, your phone may have different results because the bug could affect that).
I’ll try to take a screenshot on my phone and post it here.