Progress bar is a graphical control element used to visualize the progression of an extended computer operation, such as a download, file transfer, or professional skill and work task. The graphic is accompanied by a textual representation of the progress in a percent format.
You can also apply any colour suited according to the nature of the task.
You can also use a thinner version of the default progress by simple changing the classes.
You can also use a radius style of the default progress by simple changing the classes.
Vertical Bar Size
Vertical Complex Usage
A more recent development is the professional skill bars, which is used in your professional situations where the extent of the skill can not be determined in a way that could be expressed as a percentage.This bar uses motion and title text to show that progress is taking place.
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Progress bar use a linear function, such that the advancement of a progress bar is directly proportional to the amount of work that has been completed.