A website (alternatively, Web site or web site) is a collection of Web pages, images, videos and other digital assets that is hosted on a Web server, usually accessible via the Internet or a LAN.
A Web page is a document, typically written in HTML, that is almost always accessible via HTTP, a protocol that transfers information from the Web server to display in the user's Web browser.
A web banner or banner ad is a form of advertising on the World Wide Web. This form of online advertising entails embedding an advertisement into a web page. It is intended to attract traffic to a website by linking them to the web site of the advertiser. The advertisement is constructed from an image (GIF, JPEG, PNG), JavaScript program or multimedia object employing technologies such as Java, Shockwave or Flash, often employing animation or sound to maximize presence. Images are usually in a high-aspect ratio shape (i.e. either wide and short, or tall and narrow) hence the reference to banners. These images are usually placed on web pages that have interesting content, such as a newspaper article or an opinion piece.
The header is the top part of a webpage. You can usually identify the website with the graphics, photos, and/or information placed there; like the website's logo, slogan, contact info, related pictures, etc.
Transitions are 2 or more images arranged to create a changing image. Sometimes have special effects, sometimres just fades from one to another. Can be used to show several image on one spot or just like regular web banners. (To see them play correctly, please click on them and click on "details")
A Flash animation is an animated film which is created using Adobe Flash animation software and often distributed in the .swf file format. It can be created in Flash or with other programs capable of writing .swf files. The term flash animation not only refers to the file format but to a certain kind of movement and visual style which, in many circles, is seen as simplistic or unpolished. However, with dozens of Flash animated television series, countless more Flash animated television commercials, and award-winning online shorts in circulation, Flash animation is enjoying a renaissance.