HTML and CSS Certification 2025 – 400 Free Practice Questions to Pass the Exam

Using a CSS class serves the purpose of applying styles to multiple elements throughout a document. Classes in CSS are versatile and allow designers to group similar elements and style them uniformly. By defining a class in a stylesheet, you can apply that class to any number of elements within the HTML document, making it a powerful tool for consistent design.

When an element is assigned a class, it inherits all the styles defined for that class, promoting reusability and efficiency in styling. This means a single class can be utilized on various elements, ensuring that they share the same visual characteristics without needing to repeatedly code the same styles for each individual element. This approach not only simplifies the CSS but also enhances maintainability, as changes to the class properties automatically propagate to all elements using that class.

For instance, if you define a class for buttons that sets a specific background color and font size, you can apply that class to multiple button elements without duplicating the style rules. This reduces redundancy in your code and allows for easier updates down the line.