What does the term "grid system" refer to in web design?

The term "grid system" in web design fundamentally relates to a framework that provides a systematic approach to arranging content in a structured and organized manner. Grid systems use a series of intersecting horizontal and vertical lines to create columns and rows, which allow designers to align elements on the page thoughtfully. This organization helps improve readability and visual aesthetics by ensuring consistent spacing and proportions across different screen sizes, contributing to an overall harmonious layout.

Using a grid system makes it easier for designers to maintain a coherent design language throughout a website, facilitating responsive design practices where elements adapt seamlessly to varying display sizes. This is particularly beneficial in today’s multi-device environment, where content needs to be easily navigable and visually appealing, regardless of whether users access it on a desktop, tablet, or smartphone.

In contrast, the other choices do not accurately capture the essence of what a grid system is in web design. A theoretical layout pattern refers more to concepts than actionable frameworks, methods to enhance website security and coding languages are unrelated to layout design and organization completely. The grid system's primary focus is on aiding designers in creating visually appealing and functional layouts.