Progress bar, as the name says, is used to show a user's progress. The progress can be anything. For example, how far the user has completed a process,
Bootstrap provides many different types of progress bars. Commonly used are the vertical types. They are easy to code and understand.
Here, we have made a circle with class name .radial-01 with specified dimensions. Then, with the classes .radial-01-border-r and .radial-01-border-l and the CSS pseudo elements, we provide borders on the left and the right side of the circle.