training guide programming in html5 with javascript and css3

).The syntax of the server-side event stream is very simple. Set the "Content-type" header to "Text/event-stream". Now you can start sending the event stream.PHP Code (demo_sse.php):PHP Header (' Content-type:text/event-stream '); Header (' Cache-control:no-cache '); $time Date (' R '); Echo "Data:the server time is: {$time}\n\n"; Flush ();? >ASP Code (VB) (demo_sse.asp):Response.ContentType="text/event-stream"response.expires=- 1 Response.Write ("" Now ()) Response.Flush ()%>Code Explanation:

0. Reply content: To obtain permission, go to W3C documentation first. Http://www.w3.org/standards/webdesign/htmlcss I have not read the first book, but the second one is outdated. After all, the book was published earlier. At that time, the specifications were unknown. Print and text pen. But the books are not expensive, and I have bought them all. Don't worry about which book is authoritative. Let's take a good look at it. Read the book and read the directory to get a rough idea of what t

first, the focus of the tutorial: to HTML5 and CSS3 new features and new features -oriented, supplemented by the actual real-case pageIi. Overview of the content :The 1th part: detailed explanation HTML5 related knowledge, including each mainstream browser to HTML5 's support situation,The grammatical differences betwe

usability. We saw the grid layout begin to develop. We see Inline-block powerful ways to use it. We see that the floating fragility of the past has faded away.Now you rarely see modern web sites using tables to lay out, except that HTML messages persist. The scope of rendering the message is very broad. Messages appear anywhere on the internet and on the mobile side of native applications as well as the desktop side of old and new systems. You can do some progressive optimizations for your emai

The difference between block, inline, inline-block in 1.display1). By default, the block width fills the entire browser, and the inline width is equal to the width of its contents2). Each row holds only one block element, but can hold multiple inline elements in parallel3). Block element width, height, row high can be changed, the inline element is wide, high, row high cannot be changed4). The elements that apply inline-block are rendered as inline objects, and the surrounding elements remain on

no-js so that JavaScript is not disabled by the browser.Working with ClassesAfter using MODERNIZR, the rendered HTML code in the page looks like this:There are many classes with no prefix, but most of them do not have this prefix. In fact, if a class name is prefixed with no, such as no-touch This means that the browser does not support touch features, this is one of the two feature that the latest version of Chrome does not support:Modernizr has a t

Read the notes in HTML5 and CSS3 authoritative guide (previous book), html5css3 Chapter 2 1. content type: "text/html ". DOCTYPE Declaration: 2. the elements of the write end mark are not allowed: area, base, br, col, command, embed, hr, img, input, keygen, link, meta, param, source, track, and wbr. Elements that can omit the end tag include: li, dt, dd, p, rt,

"HTML5 and CSS3 authoritative guide" Mechanical Industry PressThe difference between Chapter 2-HTML5 and HTML41.DOCTYPE DeclarationHTML4: HTML5: The above code we call the DOCTYPE statement. DOCTYPE is a shorthand for document type, which is used to describe what version o

Today's introduction is a progress bar application based on HTML5 and CSS3, which is static and provides only the multicolored appearance of the progress bar. Of course, you can dynamically set the progress value in the CSS to make it dynamic, a good way to do is to use jquery to dynamically change the progress in the CSS, the progress bar real-time moving up. Concrete effects can be seen in the demo.You ca

interested in the width of the device, which is the width of the browser window.So use it in the desktop environment width and forget device-width it. We are about to see this situation more cumbersome on the mobile side.SummarizeThis article summarizes our search for the behavior of desktop browsers. The second part of the series points these concepts to the mobile side and shows some important differences from the desktop environment.Transferred from: http://blog.jobbole.com/44319/HTML-

"HTML5 and CSS3 authoritative guide" knowledge point finishing (1)1. New TagsAdded semantic tags. defines the header for a section or page. defines the navigation link. define a section or page footer defines a section. define the article. define content beyond the content of the page. Here is a diagram illustrating its usage.The benefits of semantic tag

detect whether the output device is a grid device or a bitmap deviceIn all of the above features, you can use the Min and Max prefixes to create a query range in addition to scan and grid3. Three ways to use media queries1). Using the CSS File referenceAre you a vertical (orientation:portrait) display (screen) ? If yes, load the specified CSS fileLimit display Devices (screen) that have a viewport width greater than 800 pixels (min-width:800px) to load the CSS fileLimit only Display Devices (

is not just for HTML, it also applies to any XML markup-based language.This separation of concerns brings a lot of benefits. This also makes it possible to apply cascading styles from a single CSS page to different pages of a site, avoiding the difficulty of writing the same information code for each page in the site. In other words, using CSS greatly frees up the maintenance of the site.In addition, this makes it possible to apply different CSS in the same file in different environments. such

.number type. 10, Range type. such asUse styles for new form elementsSecond, form verificationAutomatic validation of required patternThird, the new page elementFigure FigcaptionAdded detail and summary elements.Mark is highlighted.The quantity value within the range specified by the meter element. Property value: Max min low value high optimumImproved OL list. Start reversedThe enhanced SCRIPT element. Async defer Copyright NOTICE: This article for Bo Master original article, without Bo Master

,reversed start and end numbers in ol, Time Putdate indicates that the time element is the publication date of the article or the entire Web page, and Meta,menu,style,script,html,iframe also adds the corresponding attributes respectively.7. The abolition of attributes, most of which can be replaced with CSS style, such as many labels have the Align Center text property8. New Global Properties: a property that can be used by any element. Conenteditable is true when content is editable, document.d

>Canvas>Commandonclick= "Cut ()"label= "Cut">Details>Details>//Click title for detailsDataList>DataList>//List of selectable data, paired with inputDataGrid>DataGrid>//Optional data list, treekeygen>//Generate keyOutput>Output>//different types of outputMenu>Menu>Dialog>Dialog>dialog boxGlobal PropertiesThe Contenteditable=true|false //property value is true when the user can edit the Designmode=on|off //property on when the Contenteditable function is enabled, This property c

CSS3 selectors test: This is the CSS Selector test page provided by the Css3.info Web site, which displays in detail the current browser support for all CSS3 selectors. Launch the test, the browser will automatically test, and the list of ways to display the current browser to all CSS3 selectors support situation http:

Comments: When it comes to slider, css + js has always been used in combination to achieve relevant switching effects. I have heard of you discussing how to use html5 + css3, but I have never implemented it myself. Okay, I have time to come and play css3 this time. If you are interested, you can understand it. Well, the last time I said I had to hurry up and make

When it comes to slider, css + js has always been used in combination to achieve relevant switching effects. I have heard of you discussing how to use html5 + css3, but I have never implemented it myself. Okay, I have time to come and play css3 this time. If you are interested, you can understand it. Well, the last time I said I had to hurry up and make up a few

as the president of the range type in Chrome: Use JavaScript to detect whether CSS3, HTML5 new features are supported We want to know exactly what the browser provides for this type of implementation, can be considered to be "supported", to detect from this aspect is difficult, each browser implementation is different. Here is an implementation of the Moderniz