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IntroHTML part1

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Advanced Web Programming
Intro to HTML5
part 1
Course Topics
• Review of HTML5
• Review of Web Site design
• Review of Cascading Style Sheets
(CSS)
• DHTML using JavaScript and jquery
• Server-side processing using PHP and
cgi
• Database using mysql
Course Topics
•
•
•
•
•
Review of HTML5
Review of Web Site design
Review of Cascading Style Sheets
DHTML using JavaScript
Server-side processing using Perl and
cgi
What is HTML?
• HTML has a central role in the Web
• Tagging scheme for Web pages
• From nothing to a global information utility
in just 8 years
What is HTML 5?*
•
HTML 5 [HTML] is NOT an SGML (Standard Generalized Markup
Language) application conforming to International Standard ISO 8879.
•
SGML is a language for describing markup languages,
– used in electronic document exchange, document management, and
document publishing.
– HTML4 is an example of a language defined in SGML.
•
SGML has been around since the middle 1980's and has remained
quite stable.
– the language is both feature-rich and flexible.
– very complexity - too complex for the World Wide Web.
* this discussion taken from the W3C web page at https://www.w3.org/TR/html5/
What is HTML 5?
• HTML5 is the successor to HTML 4
• HTML5 does NOT have the syntax rules of
XHTML
– HTML5 has lots of flexibility:
•
•
•
•
Uppercase tag names.
Quotes are optional for attributes.
Attribute values are optional.
Closing empty elements are optional.
• HTML added support for multimedia
DOCTYPE
• DOCTYPEs in older versions of HTML
were longer
– the HTML language was SGML based and
required a reference to a DTD.
• HTML 5 specify DOCTYPE as follows −
<!DOCTYPE html>
• the above syntax is case-insensitive.
Character Encoding
• specify Character Encoding as follows:
<meta charset="UTF-8">
• the above syntax is case-insensitive.
The <script> tag
• In HTML 4 add a type attribute with a value
of "text/javascript" to script elements:
<script type="text/javascript" src="scriptfile.js"></script>
• HTML5 simply uses the following syntax:
<script src="scriptfile.js"></script>
The <link> tag
• Used to link to stylesheets
• HTML4:
<link rel="stylesheet" type="text/css" href="stylefile.css">
• HTML 5:
<link rel="stylesheet" href="stylefile.css">
HTML5 Elements
• HTML5 elements are marked up using start
tags and end tags.
– Tags are delimited using angle brackets
– with the tag name in between.
– end tags include a slash before the tag name.
• Example:
<p>...</p>
• HTML5 tag names are case insensitive
– convention is to use all lower case.
HTML5 Elements
• HTML5 elements:
https://www.tutorialspoint.com/html5/html5_tags.htm
HTML5 Attributes
• Elements may contain attributes
– used to set various properties of an element.
• Some attributes are defined globally and can be used on
any element,
• others are defined for specific elements only.
• All attributes have a name and a value
• Attributes defined in CSS
• Attributes may only be specified within start tags and must
never be used in end tags.
• attributes are case insensitive
• convention is to stick with lower case.
HTML5 structure
• New tags introduced in HTML5 for better structure
– section − This tag represents a generic document or application
section. It can be used together with h1-h6 to indicate the
document structure.
– article − This tag represents an independent piece of content of a
document, such as a blog entry or newspaper article.
– aside − This tag represents a piece of content that is only slightly
related to the rest of the page.
HTML5 structure
– header − This tag represents the header of a section.
– footer − This tag represents a footer for a section and can contain
information about the author, copyright information, etc.
– nav − This tag represents a section of the document intended for
navigation.
– dialog − This tag can be used to mark up a conversation.
– figure − This tag can be used to associate a caption together with
some embedded content, such as a graphic or video.
HTML5 example
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>…</title>
</head>
<body>
<header>...</header>
<nav>...</nav>
<article>
<section>…</section>
</article>
<aside>...</aside>
<figure>...</figure>
<footer>...</footer>
</body>
</html>
HTML5 example
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example 1</title>
</head>
<body>
<header role="banner">
<h1>HTML5 Document Structure Example</h1>
<p>This page should be tried in safari, chrome or Mozila.</p>
</header>
Continued on next page
HTML5 example
<nav>
<ul>
<li><a href="#">HTML Tutorial</a></li>
<li><a href="#">CSS Tutorial</a></li>
<li><a href="#">JavaScript Tutorial</a></li>
</ul>
</nav>
<article>
<section>
<p>Once article can have multiple sections</p>
</section>
<section>
<p>This is a second section</p>
</section>
</article>
Continued
on next page
HTML5 example
<aside>
<p>This is aside part of the web page</p>
</aside>
<figure align="right">
<img src=”logo.png" alt="TutorialPoint" width="200" height="100">
</figure>
<footer>
<p>Created by <a href="mailto:barr@ithaca.edu">John</a></p>
</footer>
</body>
</html>
Continued on next page
Main.html
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<!DOCTYPE html>
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5 <!-- Fig. 4.1: main.html -->
6 <!-- Our first Web page -->
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<html >
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<head>
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<title>Internet and WWW How to Program - Welcome</title>
11 </head>
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13 <body>
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<p>Welcome to HTML!</p>
15 </body>
16 </html>
The text between the
title tags appears as the
title of the web page.
Elements between the body tags
of the html document appear in
the body of the web page
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<head>
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<title>Internet and WWW How to Program - Headers</title>
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</head>
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<body>
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<h1>Level 1 Header</h1>
Every HTML document is
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<h2>Level 2 header</h2>
required to have opening
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<h3>Level 3 header</h3>
and closing html tags.
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<h4>Level 4 header</h4>
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<h5>Level 5 header</h5>
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<h6>Level 6 header</h6>
The font size of the text
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between tags decreases as
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</body>
the header level increases.
17 </html>
Select a header based on the
amount of emphasis you
would like to give that text.
Program Output
Links
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<!DOCTYPE html >
<!-- Fig. 4.5: links.html
-->
<!-- Introduction to hyperlinks -->
<html >
<head>
<title>Internet and WWW How to Program - Links</title>
</head>
Text between strong
<body>
tags will appear bold.
Linking
<h1>Here are my favorite sites</h1>
is accomplished
in HTML with the anchor
(a)page.</strong></p>
element.
<p><strong>Click on a name to go to that
<p><a href = "http://www.deitel.com">Deitel</a></p>
The text between the a tags
is the anchor for the link.
<p><a href = "http://www.prenhall.com">Prentice Hall</a></p>
<p><a href = "http://www.yahoo.com">Yahoo!</a></p>
<p><a href = "http://www.usatoday.com">USA Today</a></p>
</body>
</html>
Elements placed between paragraph
tags will be set apart from other
elements on the page with a vertical
line before and after it.
The anchor links to the
page that’s value is given
by the href attribute.
Clicking on the “Deitel” link will open up the
Deitel homepage in a new browser window.
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<!DOCTYPE html>
Contact.html
<!-- Fig. 4.6: contact.html -->
<!-- Adding email hyperlinks -->
<html>
<head>
<title>Internet and WWW How to Program - Contact Page
</title>
</head>
<body>
To create an email link include
<p>My email address is
“mailto:” before the email
<a href = "mailto:deitel@deitel.com"> deitel@deitel.com
in the href attribute.
</a>. Click the address and your browser will openaddress
an
email message and address it to me.</p>
</body>
</html>
When a user clicks on an email link,
an email message addressed to the
value of the link will open up.
Program Output
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<!DOCTYPE html>
Picture.html
<!-- Fig. 4.7: picture.html -->
<!-- Adding images with XHTML -->
<html>
<head>
<title>Internet and WWW How to Program - Welcome</title>
</head>
<body>
The value of the src attribute
of the image element is the
location of the image file.
<p><img src = "xmlhtp.jpg" height = "238" width = "183"
alt = "XML How to Program book cover" />
<img src = "jhtp.jpg" height = "238" width = "183"
alt = "Java How to Program book cover" /></p>
</body>
</html>
The value of the alt attribute
gives a description of the image.
This description is displayed if
the image cannot be displayed.
The height and width
attributes of the image
element give the height and
width of the image.
The second image could not be
displayed properly, so the value of
its alt attribute is displayed instead.
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<!DOCTYPE html >
Nav.html
<!-- Fig. 4.8: nav.html
-->
<!-- Using images as link anchors -->
<html >
<head>
<title>Internet and WWW How to Program - Navigation Bar
</title>
</head>
<body>
<p>
<a href = "links.html">
<img src = "buttons/links.jpg" width = "65"
height = "50" alt = "Links Page" /></a><br />
Placing an image element between
anchor tags, creates an image that
is an anchor for a link.
<a href = "list.html">
<img src = "buttons/list.jpg" width = "65"
height = "50" alt = "List Example Page" /></a><br />
<a href = "contact.html">
<img src = "buttons/contact.jpg" width = "65"
height = "50" alt = "Contact Page" /></a><br />
<a href = "header.html">
<img src = "buttons/header.jpg" width = "65"
height = "50" alt = "Header Page" /></a><br />
<a href = "table.html">
<img src = "buttons/table.jpg" width = "65"
height = "50" alt = "Table Page" /></a><br />
A line break will render an
empty line on a web page.
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<a href = "form.html">
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<img src = "buttons/form.jpg" width = "65"
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height = "50" alt = "Feedback Form" /></a><br />
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</p>
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</body>
43 </html>
Nav.html
Using an image as an anchor works
exactly the same as using text.
Clicking on the image entitled “links”
brings the user to the page on the right.
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<!DOCTYPE html >
<!-- Fig. 4.9: contact2.html
-->
<!-- Inserting special characters -->
Contact2.html
<html >
<head>
<title>Internet and WWW How to Program - Contact Page
</title>
</head>
<body>
<!-- Special characters are entered -->
<!-- using the form &code;
-->
<p>My email address is
<a href = "mailto:deitel@deitel.com">deitel@deitel.com
</a>. Click on the address and your browser will
automatically open an email message and address it to my
address.</p>
The horizontal rule element renders a
horizontal line on the web page.
Special characters
are denoted with an
ampersand (&) and
an abbreviation for
that character. In this
<hr /> <!-- Inserts a horizontal rule -->
case, the special
<p>All information on this site is <strong>©</strong> characters are
Deitel <strong>&</strong> Associates, Inc. 2002.</p>ampersand and
copyright.
<!-- Text can be struck out with a set of
-->
<!-- <del>...</del> tags, it can be set in subscript -->
<!-- with <sub>...</sub>, and it can be set into
-->
<!-- superscript with <sup...</sup>
-->
<p><del>You may download 3.14 x 10<sup>2</sup>
characters worth of information from this site.</del>
Only <sub>one</sub> download per hour is permitted.</p>
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<p>Note: <strong>< ¼</strong> of the information
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presented here is updated daily.</p>
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</body>
41 </html>
Contact2.html
Text placed between del
tags is struck out..
Text placed between the
sub tags is subscripted.
Text placed between the
sup tags is superscripted.
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<!DOCTYPE html>
<!-- Fig. 4.10: links2.html
-->
<!-- Unordered list containing hyperlinks -->
Links2.html
<html>
<head>
<title>Internet and WWW How to Program - Links</title>
</head>
<body>
<h1>Here are my favorite sites</h1>
<p><strong>Click on a name to go to that page.</strong></p>
<ul>
<li><a href = "http://www.deitel.com">Deitel</a></li>
<li><a href = "http://www.prenhall.com">Prentice Hall
</a></li>
<li><a href = "http://www.yahoo.com">Yahoo!</a></li>
<li><a href = "http://www.usatoday.com">USA
Today</a>
An entry
in the list must
</li>
be placed between the
</ul>
<li> and </li> tags.
</body>
</html>
The entries in an unordered list
must be included between the
<ul> and </ul> tags.
Each entry in the list is rendered on its
own line with a bullet before it.
Program Output
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<!DOCTYPE html>
List.html
<!-- Fig. 4.11: list.html
-->
<!-- Advanced Lists: nested and ordered -->
<html>
<head>
<title>Internet and WWW How to Program - Lists</title>
</head>
<body>
<h1>The Best Features of the Internet</h1>
<ul>
<li>You can meet new people from countries around
the world.</li>
<li>You have access to new media as it becomes public:
<!-- This starts a nested list, which uses a -->
<!-- modified bullet. The list ends when you -->
<!-- close the <ul> tag
-->
<ul>
<li>New games</li>
<li>New applications
<!-- Another nested list -->
<ol type = "I">
<li>For business</li>
<li>For pleasure</li>
</ol> <!-- Ends the double nested list -->
</li>
By inserting a list as an entry in
another list, lists can be nested.
Entries for an ordered list must be placed
between the <ol> and </ol> tags.
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<li>Around the clock news</li>
<li>Search engines</li>
<li>Shopping</li>
<li>Programming
<ol type = "a">
<li>XML</li>
<li>Java</li>
<li>XHTML</li>
<li>Scripts</li>
<li>New languages</li>
</ol>
List.html
The type attribute of the ordered
list element allows you to select a
sequence type to order the list.
</li>
</ul> <!-- Ends the first level nested list -->
</li>
<li>Links</li>
<li>Keeping in touch with old friends</li>
<li>It is the technology of the future!</li>
</ul> <!-- Ends the primary unordered list -->
<h1>My 3 Favorite <em>CEOs</em></h1>
<!-- ol elements without a type attribute
-->
<!-- have a numeric sequence type (i.e., 1, 2, ...) -->
<ol>
<li>Harvey Deitel</li>
<li>Bill Gates</li>
<li>Michael Dell</li>
</ol>
Text placed between the em
tags will be italicized.
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</body>
71 </html>
List.html
Nested lists are indented
underneath the main list.
Some sequence types available
to order lists are roman
numerals, letters and numbers.
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