Resizing Graphics by manually changing the html size attributes. If you have an image program, such as Paintshop Pro and are familiar with how to use it, then you can just resize it and then place it into your site. However, if you don't have an image program, that doesn't mean you are stuck with the graphic the size it is. I just manually changed the Width and Height attributes simply by cutting the numbers in half. However, try upsizing the graphic, as below, and you'll see that the graphic loses it's sharpness.
Images resize downward with much more clarity then they resize upward.
I don't know about you, but I'm not to fond of math. That's why I tend to make the clipart on this site larger. It's just easier to downsize images and maintain the quality of the image. If you are wanting to downsize, just subtract the same number from both the height and width to maintain proportion. Or you can have fun and change the graphic by making it thinner and taller by subtracting more from one side then the other.