Visual Basic.NET How to Program (PDF)

1348 Introduction to HyperText Markup Language 4: Part 1 Appendix H
ple. In subsequent examples, we also include comments in the markup, especially when we
introduce new features.
Every HTML document contains a head element, which generally contains information
about the document, and a body element, which contains the page content. Information
in the head element is not generally rendered in the display window, but may be made
available to the user through other means. Lines 8–10
Visual Basic .NET How to Program - Welcome
show the head element section of our Web page. Including a title element is required
for every HTML document. To include a title in your Web page, enclose your chosen title
between the pair of tags … in the head element.
Good Programming Practice H.5
Use a consistent title-naming convention for all pages on your site. For example, if your site
is called “Al’s Web Site,” then the title of your links page might best be “Al’s Web Site -
Links”. This practice presents a clearer picture to those browsing your site. H.5
The title element names your Web page. The title usually appears on the colored
bar at the top of the browser window, and also will appear as the text identifying your page
if a user adds your page to their list of Favorites or Bookmarks. The title is also used by
search engines for cataloging purposes, so picking a meaningful title can help search
engines direct a more focused group of people to your site.
Line 12
opens the body element. The body of an HTML document is the area where you place the
content of your document. This includes text, images, links and forms. We discuss many
elements that can be inserted in the body element later in this appendix. Remember to include
the end tag before the closing tag.
Various elements enable you to place text in your HTML document. We see the paragraph
element on line 14
Welcome to Our Web Site!
All text placed between the … tags forms one paragraph. Most Web browsers
render paragraphs as set apart from all other material on the page by a line of vertical space
both before and after the paragraph. The HTML in line 12 causes Internet Explorer to render
the enclosed text as shown in Fig. H.1.
Our code example ends on lines 16 and 17 with
These two tags close the body and HTML sections of the document, respectively. As discussed
earlier, the last tag in any HTML document should be , which tells the
browser that all HTML coding is complete. The closing tag is placed before the
tag because the body section of the document is entirely enclosed by the HTML
section. Therefore, the body section must be closed before the HTML section.