Macaw Tip - Change All Breakpoints at Once (September 22, 2014)
Macaw is pretty excellent software for making responsive prototypes, and even full sites when you don't need the complexity of a content management system. It lets you design your pages visually, but unlike Dreamweaver or other old-school visual web design software, it generates HTML and CSS that is quite clean and responsive. It's only been available publicly for about a year now, and is quite good for its age.
My friend and colleague Rex Rainey and I are writing a book about it, coming soon to real and...