Add code to the "donations.xsl" style sheet to generate the contribution report. The style and layout of the report is left up to you, but it must include the following features: 

a. The total amount of the donations 

b. The number of donors within each contribution level in a bar chart/ histogram And the contribution levels are $50,000, $25,000, $10,000, $5,000, $2,000, $1,000, $500, $200, $100. 

c. The contact information for each donor within each contribution level 

d. An example of the use of step patterns 

e. An example of a key used with the source document and an external document The CSS file within the zipped folder is employed to enhance the output. 

You are free to augment your completed project with any graphics or CSS styles of your choosing.