What does a CSS reset aim to achieve?

A CSS reset is specifically designed to remove default browser styles, which can vary significantly between different browsers. This removal helps ensure that all browsers render elements consistently, providing a more uniform starting point for web developers when styling their web pages. Default styles may include margins, paddings, font sizes, and other properties that can differ from one browser to another, potentially leading to inconsistent layouts.

By establishing a clean slate, a CSS reset allows a developer to apply their own styles without worrying about how those styles might be affected by disparate default browser settings. This practice ultimately helps create a more cohesive appearance across different devices and browsers, empowering developers to implement their desired designs more effectively.

The other options do not align with the primary goal of a CSS reset: adding new styles, optimizing images, and enabling responsive design are distinct activities that serve different purposes in web development. ASP.NET framework's unique features or browsing compatibility concerns are not addressed through a CSS reset.