Changing line chat properties using CSS

Hi gurus,

I was searching the forum for a way to change the data shape of a line chart using css but I could only find reference to changing the colors of the lines.

I have 5 different measure represented in the same chart line and I need to present each measure with a different shape in the data points.

What is the reference in the CSS file to the data point shape?

Thank you all in advance,

Hagit