What is the purpose of a style class selector?

A style class selector is used in CSS to target and apply styles to specific HTML elements that belong to a certain class. The purpose of using a style class selector is to separate the styling of a webpage from its structure, allowing for more efficient and organized CSS code. By assigning a class to specific elements, multiple elements can share the same styles without having to repeat the same CSS code for each element. This helps to make the code more maintainable and easier to update. Style class selectors start with a period (.) followed by the class name. For example, ".my-class" would target all elements with the class name "my-class".