Five reasons for using HTML5: 1. HTML5 is the future and the next generation standard of the Internet; 2. HTML5 supports mobile development and is the most mobile development tool; 3. HTML5 supports cross-browser; 4. , HTML5 has good interactivity; 5. HTML5 can realize video and audio playback without the help of flash.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
5 reasons to use HTML5
The first reason: It is the future, start using it!
The biggest reason why you start using HTML5 today is because it is the future, don’t be left behind! HTML5 won't go in every direction, but more elements have been adopted by many companies and are starting to develop. HTML5 is actually more like HTML. It is not a new technology that you need to learn again! If you develop XHTML strict you are already developing HTML5 now. Why not enjoy the functions of HTML5 more completely?
Second Reason: Mobile, Mobile, Mobile
You can call it "gut feeling", but I think mobile technology will become more popular. I know, there's some pretty wild speculation here, some of which you may have thought of too - Mobile is a fad! Mobile devices will take over the world. Greater acceptance of mobile devices will grow rapidly. This means that more users will choose to use mobile devices to access websites or web applications. HTML5 is the most mobile development tool. With Adobe announcing that it will abandon mobile flash development, you will consider using HTML5 to develop webp applications.
When mobile browsers fully support HTML5 then developing mobile projects will be as easy as designing smaller touch displays. There are a number of meta tags that allow you to optimize for mobile:
viewport: allows you to define viewport width and scaling settings;
full screen browser: The value specified by ISO allows Apple devices to be displayed in full screen mode;
Home screen icons: Just like desktop collections, these icons can be used to add collections to the home page of iOS and Android mobile devices.
The third reason: Legacy and its cross-browser support
Your modern popular browsers all support HTML5 (Chrome, Firefox, Safari, IE9 and Opera), and created the HTML5 doctype so that all browsers, even very old and disgusting browsers like IE6 can use it. But just because an older browser can recognize doctype doesn't mean it can handle HTML5 tags and functionality. Fortunately, HTML5 has made development easier and supports more browsers, so that old IE browsers can use the new elements by adding javascript code:
<!--[if lt IE 9]> <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
Fourth largest Reason: Better interaction
We all like better interaction. We all like dynamic websites that have feedback from users, and users can enjoy the interactive process. Enter
In addition to
Drag and Drop (DnD)
Offline storage database
Browser history management
document editing
Timed media playback
The fifth largest Reason: Video and Audio Support Forget Flash and other third-party applications, let your video and audio access resources through the HTML5 tags
This process is actually very simple, however our old browsers may not like our HTML5, and you need to add more code to make them work correctly. But this code is still much simpler thanThe above is the detailed content of What are the top 5 reasons to use HTML5. For more information, please follow other related articles on the PHP Chinese website!

html5的div元素默认一行不可以放两个。div是一个块级元素,一个元素会独占一行,两个div默认无法在同一行显示;但可以通过给div元素添加“display:inline;”样式,将其转为行内元素,就可以实现多个div在同一行显示了。

html5中列表和表格的区别:1、表格主要是用于显示数据的,而列表主要是用于给数据进行布局;2、表格是使用table标签配合tr、td、th等标签进行定义的,列表是利用li标签配合ol、ul等标签进行定义的。

固定方法:1、使用header标签定义文档头部内容,并添加“position:fixed;top:0;”样式让其固定不动;2、使用footer标签定义尾部内容,并添加“position: fixed;bottom: 0;”样式让其固定不动。

html5中不支持的标签有:1、acronym,用于定义首字母缩写,可用abbr替代;2、basefont,可利用css样式替代;3、applet,可用object替代;4、dir,定义目录列表,可用ul替代;5、big,定义大号文本等等。

HTML5中画布标签是“<canvas>”。canvas标签用于图形的绘制,它只是一个矩形的图形容器,绘制图形必须通过脚本(通常是JavaScript)来完成;开发者可利用多种js方法来在canvas中绘制路径、盒、圆、字符以及添加图像等。

html5废弃了dir列表标签。dir标签被用来定义目录列表,一般和li标签配合使用,在dir标签对中通过li标签来设置列表项,语法“<dir><li>列表项值</li>...</dir>”。HTML5已经不支持dir,可使用ul标签取代。

3种取消方法:1、给td元素添加“border:none”无边框样式即可,语法“td{border:none}”。2、给td元素添加“border:0”样式,语法“td{border:0;}”,将td边框的宽度设置为0即可。3、给td元素添加“border:transparent”样式,语法“td{border:transparent;}”,将td边框的颜色设置为透明即可。

因为html5不基于SGML(标准通用置标语言),不需要对DTD进行引用,但是需要doctype来规范浏览器的行为,也即按照正常的方式来运行,因此html5只需要写doctype即可。“!DOCTYPE”是一种标准通用标记语言的文档类型声明,用于告诉浏览器编写页面所用的标记的版本。


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