The provided source describes Destyle.css, an opinionated reset stylesheet designed to provide a clean slate for styling HTML. It aims to ensure consistency across different browsers, remove the need for resetting user agent styles, prevent style inspector bloat, and contribute to the separation of presentation and semantics.

Here are the main functionalities of Destyle.css:

• Consistency Across Browsers: Destyle.css aims to ensure that web pages look consistent across various web browsers.

• Prevents User Agent Style Resets: It removes the need to manually reset default browser styles.

• Style Inspector Efficiency: By targeting only what is necessary, it helps to keep the style inspector clean and uncluttered.

• Removes Margins & Paddings: The stylesheet removes default margins and paddings from HTML elements.

• Removes Default Font Styles: It removes default font styles and ensures proper inheritance of styles.

• Separation of Presentation and Semantics: Destyle.css contributes to the separation of presentation (styling) from the semantic meaning of the HTML.

• Sensible Default Styles: It sets sensible default styles, which are further explained in the documentation.

• Suitable for Utility Class Libraries and Large Codebases: Destyle.css is designed to be well-suited for use with utility class libraries and in large codebases.

• Modern Browsers: It is made specifically for modern browsers, which helps to keep the file size small (around 0.95kb).

Destyle.css can be obtained in the following ways:

• npm install: Using the command npm install --save destyle.css.

• CDN: Through a content delivery network.

• Download: By downloading the stylesheet directly.

In summary, Destyle.css is a tool that provides a normalized starting point for CSS styling, aimed at simplifying development, especially in large or complex projects. It is an alternative to a completely custom CSS reset, like the one discussed in a previous turn.