If you want to make the cloud bigger, put <font size='5'> before the cloud code, and </font> after it. You can achieve more complicated changes to the cloud's appearance by putting the code inside of a <span> or <div> tag, and specifying a style CSS attribute. Also, the links in the cloud have the CSS class makecloud_link, so you can use styles in the header or an external CSS file to modify the appearance of the cloud.