Introduction to CSS

CSS, or Cascading Style Sheets, is the language used to control the visual appearance of web pages. While HTML defines the structure and meaning of content, CSS determines how that content looks on screen. This includes layout, colors, fonts, spacing, and overall visual presentation.

CSS allows designers and developers to separate content from design. This separation makes websites easier to maintain, update, and scale. A single CSS file can style multiple pages, ensuring consistency across an entire website. Without CSS, web pages would appear as plain, unstyled text.

The term “cascading” refers to how styles are applied and prioritized. When multiple CSS rules affect the same element, the browser follows a defined order to decide which rule takes precedence. Understanding this concept helps prevent styling conflicts and unexpected results.

Ultimately, CSS transforms structured content into visually engaging, user-friendly experiences.