LESS (Less Cascading Style Sheets) is a CSS preprocessor that extends CSS with features like:

• Variables for reusable values (e.g., colors).
• Nesting to organize styles based on HTML structure.
• Mixins for reusable blocks of code.
• Operations for mathematical calculations (e.g., width: 10px * 2).
• Functions for color manipulation (e.g., lighten(@color, 20%)).

LESS files are written in .less format and need to be compiled into regular CSS before use in a web project.

Key Benefits:

• Makes CSS more maintainable and reusable.
• Improves organization and readability for larger projects.