WebsiteBaker templates should be designed to use any frontend.css file if the module has on included.
Without this feature many mofules will not operate correctly.
To make sure your website template includes this file use the following php code snippet in the <head> section of your template, preferably just before the </head> tag.
<?php
if(function_exists('register_frontend_modfiles')) {
register_frontend_modfiles('css');
register_frontend_modfiles('js');
} ?>
Read more about this on the WebsiteBaker help pages.
The frontend.css that is included with the examples will create forms just like you can see on this demo website.
The styling is fully responsive by using a very simple one, two or three column grid.
It is tested on both the standard included templates of WebsiteBaker as well as on bootstrap, foundation and skeleton css frameworks and you should not have to do any styling to be able to create a nice modern looking form.