CSS stands for Cascading Style Sheets. It is a stylesheet language used for describing the presentation and visual formatting of a web document written in HTML or XML. In simpler terms, CSS is used to control how web content is displayed on different devices and screen sizes.
CSS allows web developers to define the styles, such as colors, fonts, layout, spacing, and positioning, for HTML elements on a webpage. This separation of content (HTML) and presentation (CSS) is a fundamental principle of web design and development, as it enables greater flexibility and maintainability of websites.
Syntax
The syntax of CSS (Cascading Style Sheets) is fairly straightforward and consists of a set of rules and declarations that define how HTML elements should be styled. Here's the basic syntax structure of CSS:
selector {
property: value;
/* more properties and values */
}
Let's break down the components of this syntax:
Selector: The selector is used to target HTML elements that you want to style. Selectors can be based on element type, class, ID, attributes, and more.
Declaration Block: The declaration block is enclosed within curly braces {}. It contains one or more property-value pairs separated by semicolons.
Property: The property defines the specific aspect of an element's style that you want to modify. For example, color, font-size, background, etc.
Value: The value is the setting you assign to the property. It specifies how the property should be applied to the selected element. Values can be numeric (for example, 10px), textual (for example, red), or other appropriate units.
