CSS (Cascading Style Sheets) For Every Beginner

CSS (Cascading Style Sheets) is a stylesheet language that is used to describe the look and formatting of a document written in HTML. It is an essential tool for web development, allowing developers to separate the content of a web page from its design and layout. In this post, we will explore the basics of CSS and how it can be used to style and lay out web pages.

Basic Syntax

CSS consists of a series of rules that are applied to the elements on a web page. Each rule consists of a selector, which specifies the element or elements to be styled, and a declaration block, which contains one or more declarations that define the styles to be applied. A declaration is made up of a property, which defines the aspect of the element that is being styled, and a value, which specifies the style to be applied.

Here is an example of a CSS rule that changes the color of all paragraphs on a web page to red:

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In this example, the p selector specifies that the rule should be applied to all paragraphs on the page, and the color property is used to set the text color to red.

CSS rules can be applied to a web page in a number of different ways. They can be included in the HTML document itself, using a style element or they can be stored in a separate file and linked to the HTML document using a link element.

Selectors

CSS provides a number of different types of selectors that can be used to target specific elements on a web page. The most common types of selectors are element, class, and ID selectors.

Element selectors are used to styling all elements of a particular type on a web page. For example, the following rule will apply to all paragraphs on the page:

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Class selectors allow you to style a specific group of elements within a page. To use a class selector, you first need to give the element a class attribute and then specify the class name in your CSS rule. For example:

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In this example, the important class is applied to the paragraph element, and the CSS rule specifies that all elements with this class should have a bold font weight.

ID selectors are used to style a specific element on a page. An element can have only one ID, and an ID can be used to style only one element. To use an ID selector, you first need to give the element an ID attribute, and then specify the ID name in your CSS rule. For example:

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In this example, the intro ID is applied to the paragraph element, and the CSS rule specifies that the element with this ID should have a font size of 24 pixels.

Box Model

The box model is a concept that is used to describe the layout of elements on a web page. Each element on a web page is represented as a rectangular box.

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