View bar is the vertical bar displayed on the top right. It includes the following buttons -

Click here to zoom down so that the objects in the site appear larger . The cursor changes to the zoom in mode. The screen zooms in to show objects selected in the marquee.

Click here to zoom up so that one can see a larger area of the site . The cursor changes to the zoom out mode. The screen zooms out to fit all objects within the marquee.

Click here to pan, that is, to move from one portion of the site to another. The cursor changes to the pan mode.

Click here to view the extents, that is, all the objects in the file on the screen.