Css Selectors

Css Selectors

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Cascading Style Sheets (CSS) is a language used to style web pages. It provides developers with a powerful toolset for applying styles to HTML elements. CSS selectors are an integral part of this toolset and allow developers to target specific elements within a web page and apply styles to them.

A CSS selector is a pattern that is used to select specific HTML elements. It consists of a combination of elements, classes, and IDs that describe the properties of the elements that should be selected. There are several types of selectors that can be used in CSS.

Type Selectors

Type selectors are used to select HTML elements based on their tag name. For example, the following CSS rule selects all the paragraphs on a web page:

p {
  color: red;
}

Class Selectors

Class selectors are used to select elements based on their class attribute. The class attribute is used to group elements that share common characteristics. For example, the following CSS rule selects all elements with the class "important":

.important {
  font-weight: bold;
}

ID Selectors

ID selectors are used to select elements based on their unique ID attribute. The ID attribute is used to uniquely identify an element on a web page. For example, the following CSS rule selects the element with the ID "header":

#header {
  background-color: blue;
}

Attribute Selectors

Attribute selectors are used to select elements based on their attributes. For example, the following CSS rule selects all elements with the "href" attribute:

[href] {
  color: green;
}

Combining Selectors

Selectors can be combined to create more specific rules. For example, the following CSS rule selects all paragraphs with the class "important":

p.important {
  font-weight: bold;
}

CSS selectors provide developers with a powerful toolset for applying styles to HTML elements. By using a combination of type, class, ID, and attribute selectors, developers can create complex styles that are targeted to specific elements on a web page. Understanding CSS selectors is essential for creating well-designed and visually appealing web pages.

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