Form is not showing the btn bootstrap class in Laravel Blade

Question

I imported "laravelcollective/html":"^5.4.0" and my form is working fine but I have this issue with the btn bootstrap class, it is not showing at all, but labels, text and textarea are.

{!! 
... 

{{ Form::submit('Create Post', null, array('class' => 'btn btn-success btn-lg btn-block')) }} 

... 
!!}

I am using Laravel 5.4.

What am I doing wrong? Thanks.

Answer 1

Never mind. I had null as an argument. Working now!