difference between css and sass

 

Sass (Syntactically Awesome Style Sheets) and CSS (Cascading Style Sheets) are both stylesheet languages used to describe the look and formatting of a document written in a markup language like HTML. Here are the key differences between Sass and CSS:

1. Syntax:

   • CSS: CSS uses a simple syntax with selectors, properties, and values. It has a set of predefined rules and syntax conventions.
   • Sass: Sass is an extension of CSS and provides a more powerful and expressive syntax. It introduces features like nesting, variables, mixins, functions, and control directives (e.g., loops and conditionals). Sass files use the .scss extension.

2. Reusability and Modularity:

   • CSS: CSS allows you to reuse styles using classes and selectors. However, it lacks features like variables and mixins, making it harder to achieve modular and reusable styles.
   • Sass: Sass provides features like variables, mixins, and functions, allowing for more modular and reusable styles. Variables can store and reuse values, mixins can group styles for reuse, and functions can perform calculations and generate dynamic values.

3. Compilation:

   • CSS: CSS is a native browser language, and browsers can interpret and render CSS directly without any pre-processing.
   • Sass: Sass files need to be compiled into CSS before they can be used in a web page. The compilation process transforms Sass syntax into CSS syntax using a Sass compiler. This can be done through command-line tools, build systems, or integrated into development workflows using tools like Webpack or Gulp.

4. Features and Flexibility:

   • CSS: CSS provides a standard set of features defined by the CSS specification. It is suitable for simpler styling requirements and straightforward layouts.
   • Sass: Sass extends CSS with additional features, making it more flexible and powerful. With Sass, you have more control over the styles, can create complex layouts, and reuse code effectively.

It's important to note that Sass is a superset of CSS, meaning that any valid CSS code is also valid Sass code. This allows you to gradually introduce Sass into existing projects and use advanced Sass features when needed while still working with regular CSS syntax.