Which popup contact form module to use in Joomla 2.5?

Question

css

It is necessary that on each page of the site there is a button "Write to us", which, when clicked, opens a modal window with fields. I know how to implement this without a CMS, but it makes no sense to write a module. Surely there is a solution. I found several feedback modules, but they are either inserted into the body of the page or pop up automatically.
How to solve this problem?

Answer 1

bootstrap-4.ru/docs/4.3.1/utilities/flex/#order