I am looking at the Beaver Builder theme to see if I want to use it. I am hoping to integrate a way that I can use Less variables to compile a custom bootstrap css file. I see that you are using lessc (which I have used on other projects). I do not however see that you are running the CSS that you generate through Autoprefixer. Bootstrap however should be processed by it. http://getbootstrap.com/getting-started/#download-autoprefixer
Am I missing this? Have you had success with autoprefixer in a PHP only world?
Hey John! Thanks for reaching out with your question.
We’re using LESS and lessc as an interface between the WordPress Customizer and our auto-generated CSS. To my knowledge, we’re not generating our Bootstrap CSS file from LESS.
If you’re hoping to use a custom Bootstrap css file, you might want to consider other theme options.
You won’t want to edit the Beaver Builder parent theme (which contains our bootstrap css file) or any updates you make will be overwritten when you update. I would check out _s. It’s a great framework for creating Parent themes—which sounds like what you’re going for?