Use Cases For CSS Calc Where I play around with CSS calc operations. Published by Vincent Pickering on 23rd Sep 2015 at 00:00am Vertical centre If you know the height of the element, CSS Calc can make it super simple to position an element vertical centre and respect a responsive layout. By using this simple equation: calc(50vh – 1/2 the height of element); 50vh is always half the height of the vi