This website is designed to help you quickly and easily calculate percentages for a variety of purposes. Whether you’re calculating discounts, calculating tips, or trying to figure out how much something has increased or decreased in value, our percentage calculator can help.
Link: Percentage Calculator
It’s intended use is to align text and elements next to each other. Like centering an icon next to a bit of text.Christopher Aue
In this article, Stephen Shaw introduces a technique for perfect horizontal and vertical centering in CSS, at any width or height. The techniques works with percentage-based width/height, min-/max- width, images, position: fixed and even variable content heights.