In some templates Joomla article navigation may appear in the middle bottom of your articles.

This can be changed by making a small change to your template’s Cascading Style Sheets (CSS) file.

For example, if you use Rocket Theme Afterburner template all you need to do is add is folowing text to templates/rt_afterburner/css/light.css (actual css file name may be different if you changed template’s colour scheme):

.pagenav-prev {float: left;}
.pagenav-next {float: right;}

With other templates, required changes may be slightly different.