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HTML5 is the fifth revision of the HTML standard. It provides various enhancements and is still work in progress. This module provides links to information about HTML5 which lead you into the topic in-depth.
Introduction
The structure of a HTML5 document may be simpler than that of a HTML4 document. There is only one document type
<!DOCTYPE html> . Older browsers interpret this fine as they do not know about the HTML5 document type and try to do the best they can to render the page. Newer browsers know how to interpret HTML5.
The Web Hypertext Application Technology Working Group (WHATWG) does not speak of HTML5. They call it just HTML without a version number.
Minimal document
<!DOCTYPE html><html><head><title>The title of the document</title></head><body>The text ...</body></html>
Simple correct HTML5 template (http://www.w3.org/TR/html5/semantics.html#semantics)
<?xml version="1.0" encoding="UTF-8"?><html xmlns="http://www.w3.org/1999/xhtml"><head><title>The title of the document</title></head><body>The text ...</body></html>
The same as above but in XHTML syntax
Html5 with css and javascript
In the strict sense HTML5 is the follow-up specification to HTML4. But people often mean more when they talk about HTML5. HTML5 used as umbrella term includes extended functions of CSS (CSS3) and JavaScript (ECMAscript version 5). With this it is possible to write complete web applications in one file.
Minimal template with css and javascript
<?xml version="1.0" encoding="UTF-8"?><html xml:lang="en" lang="en"><head><style><![CDATA[
h1 {color: red;}
]]></style></head><body><h1>Beverages</h1><ul id="beverages"><li>Coffee</li><li>Tea</li><li>Milk</li></ul><span id="note"></span><script><![CDATA[
// JavaScript statements// This will be evaluated after the document has been loaded
// making it possible to easily access DOM elements.var list = document.getElementById("beverages");
var listlength = list.children.length;console.log(listlength);
var note = document.getElementById("note");console.dir(note);
note.textContent = listlength + " types of beverages";]]></script></body></html>
Template in XHTML5 syntax demonstrating access to a DOM element
View the xhtml5 template locally
View the
template in your browser. You then may save it and start changing it. Make sure it has the file extension
.xhtml for IE9 to display a local file in IE9 mode. In addition Firefox and Opera still display it properly if the file name extension is
.xml .
- The document starts with a declaration that it is encoded as an XML file.
- The root element is an
<html>...</html> node. It has two daughter nodes:
<head>...</head> and
<body>...</body> .
- The head contains the style information. It is contained in
<style type="text/css">...</style> .
- The actual data to be displayed is in the body part.
- The CDATA tells the XML parser to treat the following code as data. This means that wedges (
<> ) should not be considered
- The JavaScript code shows the method
getElementById to access the Document Object Model (DOM). All HTML elements are accessible this way.
- The JavaScript code is executed once at the end of loading the file.
- The
children method gives back all HTML elements of a particular parent HTML Element.
-
console.log(listlength) and
console.dir(note) may be used for debugging purposes. The output will be displayed on the console accessible for example in Firefox 9 through 'Tools'/'Web Developer'/'Web Console'. Other browsers have similar tools.
- This example contains all the CSS and JavaScript code. Most often this code is put into two separate files. Then two links in the main HTML file connect to them.
Display in firefox 9 with web console opened
Msdn about ie9
MSDN : "Adding a
<!DOCTYPE> pointing to an XHTML DTD does NOT influence whether a page is treated as HTML or XHTML. XHTML support for files on the web can only be triggered by the MIME type of the response from the web server. This is true both in IE9 and other browsers. This MIME type should be "application/xhtml+xml" (though you can technically use any supported XML mime type). Local files with ".xht" or ".xhtml" extensions will also be opened as XHTML".
More on dom access
Document Object Model
Further reading
Html5 in action
First chapter of Robert Crowther, Joe Lennon, and Ash Blue, HTML5 in Action, Manning, February 2014.
Chapter 5 ; source code on
github .
Comparison to other technologies
2011 - The Year HTML5 Won
Dive into html 5
on-line book by Mark Pilgrim;
CC-BY-3.0 ;
updated fork ; published on paper by O’Reilly.
Extended version of the template
Module
anonymous functions has an example where a button is added to the XHTML template given in this module.
Xhtml5 editor
There are many editors for creating XHTML5 files. Netbeans for example may be
used for this .
On-line editor
Mozilla thimble is an on-line editor for learning HTML5.
Html5 please
A
web site with recommendations which HTML5 features are ready for use and under which conditions.
Html5 test
This
web site has a browser feature detection test as well as references to the W3C standard for every feature.
Further reading specific topics
Local storage
HTML5 capable browsers have added a new
local storage facility which allows to save data between subsequent visits of a web page. This feature is similar to cookies but with more storage capacity and it is better accessible.
How to write a game
A tutorial which shows
(External Link)
More links
Presentation
(External Link) (written in HTML 5)
Specifications
(External Link) and
(External Link)
Microsoft internet explorer 9
Microsoft Internet Explorer 9 was released in March 2011. It adopted HTML5 to a large part, something other browser implementations had done before.
Learn HTML5 (Internet Explorer Developer Center).
IE9 Developer Tools . More about
IE9 and XHTML .
Differences from html4
(External Link)
Mozilla developer network
HTML5 start page
Ibm developerworks
HTML 5 fundamentals
Modernizr
(External Link) . Modernizr is a JavaScript library which helps to detect if a HTML5 feature is supported in a web browser or not.
How well does a browser support html5?
(External Link)
Questions & Answers
the study of living organisms and their interactions with one another and their environments
AI-Robot
HOW CAN MAN ORGAN FUNCTION
the diagram of the digestive system
allimentary cannel
Ogenrwot
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
Genetics is the study of heredity
Misack
how does twins formed?
Misack
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
cell is the building block of life.
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Source:
OpenStax, Test collection. OpenStax CNX. Jul 20, 2012 Download for free at https://legacy.cnx.org/content/col11420/1.2
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