The picture or image can be anything really as long as it's in .jpg .gif though .png and even .bmp are valid in a number of browsers now.
Unlike the "background" earlier, this picture is stored in the "images" sub directory for easier management.
Really you can get away with just "img src='images/spidersweb.gif'" but it loads faster with the size put in and the "alt" is for weapon with text browsers or images turned off. The name="" is not essential, but adds toward XHTML compatibility, especially in regard to acessibility issues.
Note the " /" at the end? This again is for XHTML code and is backwards compatible.
Next we'll center the image.