CSS stands for Cascading Style Sheets, which stands for Cascading Style Sheets. It is a markup language used for the visual design of Web sites.
Objects located on the page are placed using HTML. But CSS is responsible for how those objects look. Their size, color, background image, degree of transparency, location relative to other elements, behavior when hovering the cursor, the visual change of buttons when clicked, etc.
Priorities in CSS
Let’s talk more about the question of priorities. Their hierarchy works as follows:
The ones with the highest priority are the properties that have the following definition at the end of their declaration.
Then there are inline styles, which are written in the tag via the style attribute.
Even lower is the priority of the styles specified in the style tag in the document itself.
Next are the styles attached to the document as an external CSS file using the tag.
CSS methodologies
Beginner webmaster working with CSS is enough to know what CSS styles are and how to use them, learn the basic properties and how to set them. However, working with large projects requires the use of specialized tools, as well as clear standards for writing CSS. Otherwise, other developers simply will not be able to properly serve the code.
There is no single methodology for CSS. There are several options, and the task of the developer to choose the methodology that best suits him. But first it is worth to understand the basics, learn how to work with CSS. By the way, new variants do not appear very often, so it is worth following the novelties.
The most popular modern methodologies for CSS are Atomic CSS (Functional CSS) and CSS in JavaScript. The first option is based on using the maximum number of basic classes, so you can reuse them as often as possible. Advocates of the second option believe that CSS styles should not be defined in a separate table, and within each component.
The future of CSS
CSS is constantly evolving – now the third generation of this standard is being actively developed. It divides the specification into modules, with the design and development of each of them are independent. Developers of modern browsers are gradually expanding support for CSS3.
A few years ago, the fourth generation of CSS standard began to take shape, but so far the specifications are at the level of drafts.
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