How to allow android app to show website modals?

Question

Java

I want to create an android application based on a website, I use the tag <webView>. Everything compiled correctly, but it displays a blank screen, but you need a dialog box to enter a username and password, how to do this
(yes, I know js is there, but still)

Answer 1

here on divs
https://jsfiddle.net/1bs6h698/
or on tables
https://jsfiddle.net/dr26v26k/
PS: maybe there is a more beautiful solution?
Try to remove the content of the right block or add content to the left or center blocks

Answer 2

I hope I understood the task correctly... Add to your css.

.right {
  position: relative;
}
.right-bot {
  position: absolute;
  bottom: 0;
}