A pie-chart data visualization that is based on a single image and css.  What you do is define the id or class of the chart that you are showing, and just set the background-position of that css identifier to the portion of the graph that you want to show.  This will allow you to show 5% increments of the piechart to your users.  Also, you can show multiple piecharts on your site without alot of extra overhead, because once the image is loaded a single time, the other instances of that image are ‘free’.

Have A Slice

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