Hello,
Thanks for the help, now I can create the rules CSS.
I have another question regarding how to test applications on iOS and Android operating systems. I found that there is an app called Appery.io Tester that lets you test the apps in development and I installed on an Android phone and another on Iphone. In the latter the app (IOS) did not work properly and the pages that carry an external url through an iframe appear with the wrong size and you can not scroll the page (follows a printscreen attached). The Appery.io Tester has an app from functioning properly, that is, I can trust that really I have a problem with the app on iOS?
Thank U! 