CSS stands for Cascading Style Sheets. It is a styling language used to describe the look and formatting of a document written in HTML (Hypertext Markup Language). CSS allows web designers to separate the presentation of a webpage from its structure, making it easier to apply consistent styles across multiple pages.
Here are some key points about CSS:
Selectors: CSS uses selectors to target specific HTML elements and apply styles to them. Selectors can target elements by their tag name, class, ID, attributes, or relationship to other elements.
Properties: CSS properties define the visual appearance of the targeted elements. Examples of properties include color, font size, margin, padding, background color, etc.
Values: CSS properties are assigned values to determine their specific behavior. Values can be specified in different units such as pixels (px), percentages (%), em, rem, etc.
Stylesheets: CSS rules are typically written in stylesheets, which are either included directly within an HTML document using the
<style>tag or linked externally through a separate CSS file using the<link>tag.Cascading and Specificity: CSS follows the cascading principle, which means that multiple styles applied to the same element can interact and produce a final computed style. Specificity is a rule that determines which style declarations are applied when conflicting styles are targeting the same element.
Box Model: The CSS box model describes how elements are rendered on a webpage. It consists of content, padding, border, and margin. The box model affects the layout and spacing of elements.
Responsive Design: CSS provides techniques for creating responsive web designs that adapt to different screen sizes and devices. Media queries can be used to apply different styles based on the device's characteristics.
CSS Frameworks: CSS frameworks, such as Bootstrap and Foundation, are pre-written CSS libraries that provide a set of ready-to-use styles and components to speed up web development.
CSS is a powerful tool for controlling the visual presentation of web pages and plays a crucial role in creating attractive and user-friendly websites. It is widely supported by modern web browsers and has become a standard part of web development.
