Which two advantages are associated with using external Cascading Style Sheets (CSS)?

Using external Cascading Style Sheets (CSS) provides several advantages in web design, and one key benefit is that it facilitates design consistency across the whole site. By linking a single CSS file to multiple HTML pages, web designers ensure that all pages share the same styles, layouts, and design elements. This uniformity not only enhances the visual coherence of the website but also reinforces branding and aids in creating a professional appearance.

Another important advantage of using external CSS is that it allows for easier changes in global settings and formatting. When style elements are defined in one external stylesheet, modifying the look of an entire site becomes a more streamlined process. Instead of adjusting styles in every single page, a designer can simply edit the CSS file to apply changes across the entire site. This efficiency saves significant time during both the design and maintenance periods, ensuring that updates can be implemented swiftly and with minimal effort.

While the other options may seem relevant to web design, they do not directly relate to the core functionalities and benefits provided by external CSS files. Design consistency and global changes are the primary strengths of using this approach.