d H6 the lowest-level header. Each item of the list starts with <LI> tag (there is no </LI>). The tag <UL> before the first <LI> tag and </UL> Netscape File Edit View Go Communicator Help Forward Reload Search Netscape Print Bookmarks Location: http://tarmo/sample.html What's Related Instant Message WebMail Contact People Yellow Pages Author The author of this section is Tarmo Anttalainen. Source of: http://tarmo/sample.html Netscape <HTML> <H1>Author</H1> The author of this section is <A REF="http://www.evitech.fi/teachers/tarmoan"> Tarmo Anttalainen.</A> /HTML> Figure 6.57 Example HTML document and its source file. Introduction to Telecommunications Network Engineering Table 6.3 Some Common HTML Tags Description <HTML>...</HTML> Declares that Web page is written in HTML <HEAD>...</HEAD> Delimits page's head <TITLE>...</TITLE> The title not shown on the page <BODY>...</BODY> Delimits the page's body <Hn>...</Hn> Delimits level n heading <B>...</B> Shows text in boldface <l>...</l> Shows text in italics Start of each item on the list <UL>...</UL> Delimits unordered (bulleted) list of LI items <OL>...</OL> Delimits ordered or numbered list of LI items <MENU>...</MENU> Delimits a compact list of LI items Start of paragraph Horizontal rule <CENTER>...</CENTER> Sets the item to the middle of the window <IMG SRC=" "> Load an image from URL <A ARHEF="...">...</A> Define a hyperlink <APPLET>...</APPLET> A Java script to be downloaded after the last one command the browser to add bullets in the front of each list item. If the list starts with <OL> followed by the list items, indicated by <LI>, numbers are shown instead of bullets. Numbered list section ends to </OL>. We can insert into an HTML description images, video, and audio. MIME was defined to allow transmission of non-ASCII data through e-mail. It allows arbitrary data to be encoded in ASCII for byte-oriented transmis- sion the same way as HTML text [4]. Table 6.3 shows how images are inserted. We simply refer to the URL defining the location and the file itself.