i found the code for centering the image. thanks

When i test the app on my phone through the apperie.io test app it gives me an a message "bad request". I even tried on a different phone and still gives me same message.

my button that navigates to my other page doesnt seem to work anymore. i tried deleting the button and remaking it. but when i test it the button doesnt do anything.

the picture keeps on changing size and postition but never positioned to the middle.

changing collapsable to custom images like so...? could anyone explain step by step on how to do this. I am still a beginner

i created the login,register, and recover password. I still dont know how to make the loading page and changing collapsibles to my custom images.

I was wondering if anyone could help me create my service app that provides drinks services. You can order drinks such as vodka, rhum, whisky, beer, and different juices.