Below are some of the standard animated gif Job Advertisement sizes used on web pages. It is a sort of convention to develop Job Advertisement based on these sizes; however, you are not bound by these dimensions, as it were. Two other sizes for animated gif Job Advertisement are also in use: 350x300 and 720x300. These are generally not used on web pages but as pop-up or pop-under ads displayed in separate browser windows.

The Interactive Advertising Bureau has formulated the standard sizes for Job Advertisement.