Unstyled HTML seems as plain textual content inside an online browser. This lack of visible distinction between components like headings, paragraphs, and lists makes the code tough to learn and interpret throughout the browser window. For instance, a degree one heading will seem with the identical font measurement and elegance as common paragraph textual content, rendering the inherent structural hierarchy of the doc invisible with out inspecting the supply code.
Making use of colours and styling by means of CSS dramatically enhances code readability throughout improvement and debugging. Clearly differentiated components permit builders to shortly visually establish structural elements and spot errors in markup or styling. This visible readability has been paramount for the reason that early days of the net, evolving alongside CSS to offer ever extra granular management over presentation and person expertise. This visible suggestions throughout improvement turned essential as net pages grew in complexity.