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Math 10126 Introduction to HTML Gavin Shaddick

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1 Math Introduction to HTML Gavin Shaddick

2 Web addresses URL - Uniform Resource Locator "protocol://address" protocol is something like http, gopher, FTP, telnet address is merely the server and pathname (if any) of a given resource or page For example,

3 What is HTML? HTML – hypertext mark up language a format that tells a computer how to display a web page in a browser, e.g Explorer, Netscape. The documents themselves are plain text files with special "tags" or codes that a web browser knows how to interpret and display on your screen.

4 Where do you create HTML files ? Any text editor program capable of creating plain text files e.g. NotePad, emacs, pico. Word processor, e.g. Word. If you use a word processor program then you must save your files as plain text format. Dedicated HTML editor or generator, e.g. Frontpage You cannot guarantee that your document will appear to other people exactly as it does to you.

5 Tags HTML is composed of tags. HTML tags are always enclosed in angle- brackets, Tags typically occur in begin-end pairs. These pairs are in the form...

6 Begin-end tags

7 Document tags The first and last tags in a document should always be the HTML tags If you were to load such a page into a Web browser, it wouldn't do anything except give you a blank screen

8 Heads and titles HEAD –contain all of the document's header information, e.g. title TITLE –This will appear at the top of the browser's title bar, and also appears in the history list. –Will also go into a bookmark list Document Title

9 Body BODY comes after the HEAD structure. Between the BODY tags, you find most of the stuff that gets displayed in the browser window. This appears in the browser window

10 First web page Math HTML This appears in the browser window

11 Putting it all together

12 Comment Tags If you want to leave yourself notes in an HTML document, but don't want those notes to show up in the browser window you do need an exclamation point after the opening bracket, but not before the closing bracket. there is no end tag, i.e. This is an empty tag

13 Headings Used to set apart document or section titles. There are six levels of headings, from Heading 1 through Heading 6. Heading 1 (H1) is "most important" and Heading 6 (H6) is "least important." Heading 1 Heading 2 Heading 3 Heading 4 Heading 5 Heading 6

14 Paragraphs The beginning of a paragraph is marked by, and the end by. Paragraphs can often be far too long, wandering on with no clear sense of direction or purpose, boring the reader to sleep and obscuring the point of the message contained within the text. On the other hand, they can be pretty short. Really short.

15 Line break If you want to end a line after a certain word, but don't want to start a new paragraph Use the tag There is no tag – another empty tag If you want to force a line break for some reason, but it doesn't make sense to start a new paragraph, then you can use the line break tag just as I will do at the end of this sentence. See the forced display on the next line? How about there? Or there?

16 Style tags Everything between and is boldfaced. Everything between and is italicized. Everything between and should be underlined; however, see the note below. Everything between and is in typewriter text

17 Hyperlinks HREF stands for "Hypertext REFerence Have you seen the Bath home page Click here to see this example

18 Images Images are placed in Web documents using the IMG tag, Kept in separate files Use a SRC attribute - "source" Can be a web address or a file

19 Creating your own home page on BUCS Run the mkhome command on UNIX server, i.e. mary, midge or ss1 Creates a basic home page (ie name, postal address, phone & fax numbers and address). Home page is called for index.html Created in a directory called public_html in your UNIX home directory Also accessible on H drive under public_html

20 Your homepage on the web Once you've created your personal home page it will be added to the list of all personal home pages at Bath URL: index.html be the first page that opens, This facility is provided as a personal privilege and should not be abused

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