CSSkäyttö

CSSkäyttö refers to the use of Cascading Style Sheets (CSS) in web development. CSS is a style sheet language used for describing the presentation of a document written in HTML or XML. It controls how these documents are displayed on screens, on paper, or in other media. CSS allows developers to separate the content of a web page from its visual design, making websites more maintainable and flexible.

There are several ways to implement CSS. Inline styles can be applied directly to HTML elements using the style attribute, though this is generally discouraged for larger projects. Internal stylesheets embed CSS rules within a style tag in the HTML document's head. External stylesheets are the most common and recommended method, where CSS rules are written in separate .css files and linked to the HTML document using a link tag.

CSS properties define the visual appearance of elements, such as color, font, spacing, and layout. Selectors are used to target specific HTML elements to which the styles will be applied. For example, a selector might target all paragraph elements, or a specific element with a particular ID or class. The "cascading" aspect of CSS refers to the hierarchy and order in which styles are applied, with more specific rules or later-defined rules often overriding earlier ones. Proper CSSkäyttö is crucial for creating aesthetically pleasing, user-friendly, and responsive websites.