The Attributes are the different command parameters we are placing inside a Tag. These do more to render specific results than just the tag alone. Most can be interchanged from Font Tags to Table Tags, so for quick reference, here is a list of common Attributes and their functions:
bgcolor="white" This Attribute can be used in several different Tags to define the background color, i.e. Page Background Color, Table Background Color, etc.
background="http://www.backgroundaddress.com/" This Attribute can be used in several different Tags to define the background image, i.e. Page Background Image, Table Background Image, etc.
border="1" defines a border sometimes used in things like Tables and Images.
bordercolor="blue" would be used with the above attribute to define a color for the Border, if not used the Borders are automatically default white unless otherwise specified somewhere in the Page Script.
height="200" define the height of an element in pixels, such as an Image or a Table.
width="200" define the width of an element in pixels, such as an Image or a Table.
This should give you an idea of how an Attribute define the motives of a Tag. There are many more Attributes that haven't been mentioned here. They will be mentioned in this Guide along with the Tags they can be used with.