Impossible to remove outline on <p> <a> or <div>

I’m creating my application with a login page and I have my “Forgotten password ?”.

But I have already tried <p> <a> and <div> with .class, :focus {outline: none} but there is still a yellow square around my item…
I don’t have this problem with my browser, only with my android application…

Someone has a solution about this issue ?

Thank you