| A | B |
|---|
| XHTML | Extensible Hypertext Markup Language separates content from data; stricter, cleaner version of HTML |
| XML | Extensible Markup Language designed to carry data, not display data; you define your own tags |
| element | a distinct object in the document, like a paragraph, heading, or page title |
| tag | marks each element in a document; html code that creates an object/element |
| two-sided tag | tag that contains document content |
| one-sided tag/empty element | tag that contains no content; opens and closes in same tag |
| <html> tag | marks the start of an html document |
| </html> tag | tells a browser when it has reached the end of the html document |
| head section | contains information about the html document; not displayed in the Web page; Web browsers use the information in the <head> section |
| body section | contains all of the content to be displayed in the Web page; placed after the </head> tag |
| nesting | placing one element within another |
| comment tag | allows you to add notes to your html code; can be placed anywhere in the code; doesn't show in the browser |
| white space | blank spaces, tabs, and line breaks within an html file |
| block-level element | elements that create blocks or large groupings of text; can contain text, data, inline elements or other block-level elements; generally begins a new line of text |
| inline element | elements found within the text of the html document; smaller than block-level elements; does not begin a new line of text |
| inline styles | style that is written into an individual tag to change the appearance of that tag |
| lists | present information in an easy-to-read format |
| ordered list | items appear in a sequential order |
| unordered list | items do not need to appear in any special order |
| definition list | contains a list of definition terms, each followed by a definition description |
| nested list | a list within a list |
| <address> tag | logical tag that identifies contact information; block-level element |
| <blockquote> tag | identifies a long quotation; indented on both left and right margins; block-level element |
| <div> tag | identifies a generic block-level element |
| <pre> tag | retains all white space and special characters just the way it is entered in the code; block-level element |
| character formatting elements | used to specify either the logical meaning or physical appearance of marked text without causing a paragraph break |
| <cite> tag | a citation; logical inline element |
| <code> tag | program code text; logical inline element |
| <em> tag | emphasized content that displays the text in italics; physical inline element |
| <span> tag | a generic inline element |
| <strong> tag | strongly emphasizes text in bold; physical inline element |
| <sub> tag | subscripted text; inline element |
| <sup> tag | superscripted text; inline element |
| logical element | describes the nature of the enclosed content, but not necessarily how the content should appear |
| physical element | describes how the content should appear but doesn't indicate the content's nature |
| deprecated | obsolete; no longer in use; out of date |
