Go to the Customer Comment Styles section. In this section, you will create style rules for the customer comments displayed near the bottom of the page. For the ulelement with the id comments, create a style rule that sets the width to 75% and centers the element by setting the top/bottom margin to 40 pixels and the left/right margin to auto.
Karen wants the list items to appear in two columns on the page. In the same section, create a style rule for every list item in the comments list that:
-displays the item as a block with a width of 50% floated on the left and
-sets the size of the bottom margin to 30 pixels.
Every customer comment is accompanied by an image of the student. Karen wants these images displayed to the left of the comment. Create a style rule to display the image within each comment list item as a block with a width of 20%, floated on the left, and with a left/right margin of 5%.
Create a style rule for every paragraph nested within a customer list item that floats the paragraph on the left margin with a width of 70%.

Write a program that displays the following menu: geometry calculator 1. calculate the area of a circle 2. calculate the area of a rectangle 3. calculate the area of a triangle 4. quit enter your choice (1-4): if the user enters 1, the program should ask for the radius of the circle and then display its area. use the following formula: area = ď€(the square of r) use 3.14159 for ď€ and the radius of the circle for r. if the user enters 2, the program should ask for the length and width of the rectangle and then display the rectangle’s area. use the following formula: area = length * width if the user enters 3, the program should ask for the length of the triangle’s base and its height, and then display its area. use the following formula: area = base * height * .5 if the user enters 4, the program should end. input validation: display an error message if the user enters a number outside the range of 1 through 4 when selecting an item from the menu. do not accept negative values for the circle’s radius, the rectangle’s length or width, or the triangle’s base or height. note: if the user enters an improper menu choice (1-4), the program prints "the valid choices are 1 through 4. run the program again and select one of those." if the user enters a negative radius, the program prints "the radius can not be less than zero." if the user enters a negative value for height or base, the program prints "only enter positive values for base and height."