| A | B |
| Nesting | Putting an object inside another object; such as an HTML tag inside another HTML tag. |
| HTML Tag | Special codes which describe or define content in a Web document |
| HTML Element | The opening and closing tags including the text in between. |
| HTML Attribute | Provide HTML attributes with additional meaning and context. |
| Cascading Style Sheet | A language for defining how to display HTML elements |
| CSS Selector | The HTML element that you want to style. |
| CSS Declaration | The style property and value |
| CSS Property | The style attribute you want to change |
| CSS Value | The attribute you want applied to the property |
| Absolute Link | A link that specifies a complete path to a file, including the protocol, server, directory, filename. |
| Relative Link | A link that specifies the name of the file to be linked to as it relates to the current document. |
| Hexadecimal color codes | Color values written with the # sign followed by six digits using the numbers 0 to 9 and A to F to represent the amount of red, green and blue. |
| Rgb color codes | Color values using the combination of red, green, and blue values ranging from 0 to 255. |