Glossary of Web Development Terms

Total Width
The combination of the value of the width property, widths of left and right padding, and the left and right borders. For more information read up on the Box Models.
Layers
Common term for absolute positioning. It's also the name of a Netscape 4 proprietary element.
Declaration
A property and value pair in a CSS rule. (The term means something else in markup languages, e.g. HTML, XHTML, and XML.)
Inline (CSS or JavaScript)
Using the X/HTML style or event, e.g. onclick, attributes on element(s). It's better to use embedded, or even better, external stylesheets and scripts.
Embedded (CSS or JavaScript)
Including CSS in a <style> element or JavaScript in a <script> element.
ECMA Script
The standard for several languages which include JavaScript, JScript, and ActionScript.

Abbreviations of Commonly Used Terms

AbbreviationsFull Name
HTMLHyper-Text Markup Language
XHTMLeXtensible Hyper-Text Markup Language
XMLeXtensible Markup Language
X/HTML or (X)HTML or [X]HTMLHTML and/or XHTML
X(HT)MLXML and/or XHTML
CSSCascading Style Sheets
JSJavaScript
PHPrecursive acronym for PHP: Hypertext Preprocessor
ASPActive Server Pages
JSPJavaServer Pages
LAMPLinux, Apache, MySQL, PHP (sometimes Perl or Python)
SERPSearch Engine Results Page
SEOSearch Engine Optimization
Last update: 2008-02-12