CSS selectors are patterns used to select the HTML elements you want to style. They are a fundamental part of CSS (Cascading Style Sheets) and are used to "find" or target the elements on a web page that you wish to apply styling rules to. Selectors are matched with the HTML elements in the Document Object Model (DOM) and can be used to apply specific styles to elements, such as color, font, layout, and many other properties[1][2][3][4][5][6][7][8][9].
Here are some common types of CSS selectors:
Element Selector: Targets HTML elements based on their tag name. For example, p selects all <p> elements[2][7].
ID Selector: Uses the id attribute of an HTML element to select a specific element. It is unique within a page and is prefixed with a hash (#) symbol. For example, #navbar selects the element with id="navbar"[2][7].
Class Selector: Selects HTML elements with a specific class attribute. It is prefixed with a dot (.) symbol. For example, .button selects all elements with class="button"[2][6][7].
Universal Selector: Selects all elements on a web page and is represented by the asterisk (*) symbol[2][7].
Attribute Selector: Targets elements based on the presence of an attribute or an attribute value. For example, [type="text"] selects all elements with a type attribute value of "text"[2][8].
Pseudo-Class Selector: Selects elements based on their state or position. For example, a:hover selects anchor elements when they are being hovered over by the mouse pointer[2].
