LESS is a dynamic stylesheet language. It extends CSS with dynamic behavior such as variables, mixins, operations and functions. Imagine being able to define a color one time and then use it in multiple places. To be able to say, "Take that background color and have it darken by 20% when I hover over it." Imagine being able to use rounded corners without needing to remember and write the styles for all the different browsers, to be able to create gradients in CSS by just telling it the colors you want to use.
This session will introduce you to LESS, show you how to use it, and walk you through how to set up the software to use it. Since this is an extension of CSS, you should know some CSS. The examples will be taken from Bootstrap and Joomla JUI so having basic knowledge of that is helpful.