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HTML5 New Rules: " >HTML5 New Rules:

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HTML5 study notes (1) - Understanding HTML5

黄舟

Mar 16, 2017 pm 03:32 PM

html5

What is HTML5?

HTML5 will become the new standard for HTML, XHTML, and HTML DOM.

The last version of HTML was created in 1999. The world of the Web has changed dramatically since then.

HTML5 is still a work in progress. However, most modern browsers already have some HTML5 support.

HTML5 New Rules:

##New features should be based on HTML, CSS, DOM and
JavaScript.
Reduce the need for external plug-ins (such as Flash)
Better
Error handling
More tags to replace scripts
HTML5 should be device independent
The development process should be transparent to the public

New Features

Some interesting new features in HTML5:

canvas# for drawing ## Elements
##Better support for local offline storage
New special content elements, such as article, footer,
er, nav, section
New form
, such as
calendar, date, time, email, url, search
Browser support

The latest versions of Safari,

Chr

ome, Firefox and Opera support some HTML5 features. Internet Explorer 9 will support certain HTML5 features.

HTML BasicsExplanation##1. Statement:

There are also many different versions of HTML. Only by fully understanding the exact HTML version used in the page can the browser display the HTML page completely correctly. This is where is used.

HTML5:

<!DOCTYPE html>

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HTML4.01:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">

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XHTML1.0:

<!DOCTYPE html
        PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

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HTMLBasic Tags

Head, body

HTML tags are keywords surrounded by angle brackets, such as

HTML tags usually appear in pairs, such as
##The first tag in the tag pair is the opening tag, and the second tag is the closing tag
Opening and closing tags are also called opening tags and closing tags

<html><head></head><body><h1>My First title</h1><p>here is the first paragraph.</p></body></html>

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Example:

# The text between ## and is visible. The page content
The text between
and
is displayed as Title
The text between
and
is displayed as a paragraph
3. HTML title

...

Wait for tag definition

<!DOCTYPE html> 基础

标题1

标题2

标题3

标题4

标题5

标题6

这是我的第一个H5程序

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3. HTML paragraph

Tag definition paragraph

4. HTML connection

　 Tag definition connection

<a href="www.baidu.com">找度娘</a>

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5. HTML图像

　　标签定义图像

<img src="照片的路径, 可以是网络的, 可以是本地的">

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