What is the outcome of not using a CSS reset?

Not using a CSS reset can lead to inconsistent styling across different browsers. This inconsistency arises because each browser has its own default styles for HTML elements. For example, the default margins, padding, font sizes, and other styling can vary significantly, resulting in a webpage that looks different on various browsers. A CSS reset aims to establish a consistent baseline by removing or standardizing these browser-specific styles, ensuring that developers can start from a uniform point. This is especially important for responsive design, as discrepancies can affect how elements are positioned and sized, leading to a poor user experience. By utilizing a CSS reset, developers can create a more predictable and consistent layout across different platforms and devices.