LESS
Leaner Style Sheets (Less) is a popular CSS pre-processor that extends CSS with dynamic functionality, and allows more techniques to make CSS that is more maintainable, themeable and extendable. Dynamic behavior includes variables, mixins, operations and functions.
| First released | 2009 |
| Developed by | Alexis Sellier |
| Latest stable version | 2.7.2 |
| Open-source | Yes |