
A Grunt workflow for designing and testing responsive HTML email templates with SCSS.

Express.js is a simple Node.js framework for single, multi-page, and hybrid web applications.
SCSS is a preprocessor scripting language that extends the capabilities of CSS by adding features such as variables, nesting, and mixins. It allows developers to write more efficient and maintainable CSS code, and helps to streamline the development process by reducing repetition and increasing reusability.
A template or theme refers to a pre-designed layout or structure that provides a basic framework for building a specific type of application or website. It typically includes good design, placeholder content and functional features, allowing developers to customize and fill in the details according to their specific needs.
Grunt is a popular JavaScript task runner that automates repetitive tasks like minification, compilation, and testing, allowing developers to focus on writing code.