# Less

Less extends CSS with dynamic behavior such as variables, mixins, operations and functions. Less runs on both the server-side (with Node.js and Rhino) or client-side (modern browsers only).

<ResourceGroupTitle>Free Content</ResourceGroupTitle>
<BadgeLink colorScheme='blue' badgeText='Read' href='https://lesscss.org/'>Official Website</BadgeLink>
<BadgeLink colorScheme='blue' badgeText='Read' href='https://lesscss.org/usage/'>Official Documentation</BadgeLink>
<BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=YD91G8DdUsw'> Less CSS Pre-Processor Tutorial</BadgeLink>
