I often need a responsive, full width media block to accompany a call to action. It usually involves a headline, a short paragraph, and a link or button for the action. This one uses em sizing so that it's fonts and box model properties are modified by changing the font size on the outer element.
I don't like to let the blocks text get too long, so the inner wrapper limits this, in this case to 720px. One side effect of this that I noticed was that it felt very unbalanced on larger screens. After max width is reached, the vertical padding is increased slightly. This makes it better.
No problem, I made the centered a modifier class for just this reason! Sometimes the left aligned thing just kinda works, you know?
For completeness, this just had to happen. Not sure if this is ever gonna look all kewl, but what the heck, right? Maybe if there is a bit more text…
For when you just gotta have that newspaper-type superfancy perfectly aligned look, rivers be damned. Just go ahead and use this. I mean what the heck, live a little, am I right? Just make sure you consider all viewports, there be gators in them rivers!