What
is Cascading Style Sheet?
Cascading Style Sheets, commonly referred to as CSS, is a
style sheet language used to describe the presentation of a document written in
HTML (Hypertext Markup Language) or XML (Extensible Markup Language). It is
responsible for controlling the visual appearance of web pages and user
interfaces.
CSS separates the content of a webpage from its
presentation, allowing web designers and developers to define various aspects
of the page's layout, typography, colors, and other visual elements. By using
CSS, you can apply consistent styles and formatting to multiple web pages at
once, making it easier to maintain and update the design across an entire
website.
The term "cascading" in CSS refers to the way
styles are applied to HTML elements. Multiple CSS rules can target the same
HTML element, and the styles will be combined and applied according to a
specific hierarchy and precedence. This allows for flexibility and the ability
to override or inherit styles as needed.
CSS is based on a set of rules and selectors that define
which elements in an HTML document should receive specific styles. These styles
are defined using properties and values, which control attributes such as the
font, color, size, margin, padding, and positioning of elements.
CSS has evolved over time, and there are different versions
with varying levels of features and capabilities. CSS3, for example, introduced
new properties, selectors, and techniques, including support for animations,
transitions, and responsive design.
Overall, CSS is a fundamental technology in web development
that plays a crucial role in creating visually appealing and engaging websites
and applications.
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