Did he make a typo? http://codepen.io/cheapsteak/pen/axJit http://codepen.io/cheapsteak/pen/axJit Doesn't work, unless you change `position: relative` to `pos

Did he make a typo? http://codepen.io/cheapsteak/pen/axJit http://codepen.io/cheapsteak/pen/axJit Doesn't work, unless you change `position: relative` to `position: absolute`