How to use wp_add_inline_style the right way

Whenever developing a WordPress Theme or plugin, you might have surely felt the need to modify some CSS properties such as colors, font size, transitions, hovers and other CSS elements using PHP. There are many ways to do so but we are going to focus on the most recommended one i.e. wp_add_inline_style. This function is used to add custom CSS styles to already enqueued files. Let's see how it works.