On today’s Internet chances are there is a high proportion of your readers who are on small screens. With the proliferation of smartphones everywhere it’s more important than ever to optimize your site for them.
And not just because small screen users are BIG in number, but because it’s the right thing to do and creates a fantastic reading experience them.
When designing for the mobile web, you can’t avoid the fact that no matter how pretty your design is, if it’s hard to read on a small screen it most likely won’t be used much -- your reader will bounce.
There are two ways you can do this optimize for this. The first is to squeeze the browser window really thin, so the post editor squishes thin to mimic a smartphone size screen.
Or you could open the editor on a smartphone and edit there.
Either way, the goal is to make sure there aren’t massive paragraphs that consume all the free space on a small screen (sometimes referred to as the "wall of text"). Yes, this will make short paragraphs on large screens, but that’s fine -- it's better than leaving the small screen readers out to dry.
Just add some line breaks to break up large paragraphs into smaller ones. Try to do it in as logical a way as you can, but don’t stress too much over that. This is web writing, not academia. Your reader will appreciate the effort you put into the reading experience.
Now hit publish to bring your work to the people you seek to serve.