This article mainly introduces the relevant information on the solution to the problem of disabling paste, copy and paste when long pressing the mobile page in HTML5. It is very good and has reference value. Friends in need can refer to the solution as follows: Directly in the CSS file Add the following code to realize the function of prohibiting pasting and copying on the mobile phone: XML/HTML Code copy content to the clipboard*{ -webkit-touch-callout:none; /*The system default menu is disabled*/ -webkit-user-select:none; /*webkit browser*/ -khtml-user-select:none;&nb
1. HTML5 Solution to disabling copying and pasting when long pressing on the mobile page
Introduction: This article mainly introduces relevant information on the HTML5 solution to the problem of disabling paste and copy when long pressing on mobile pages. It is very good and has reference value. Friends in need can refer to
2. Detailed explanation of the usage of pattern attribute in HTML5
Introduction: Recently when I was working on a mobile page, I encountered the problem of the keyboard for numeric input. The previous method was just to use type="tel" across the board, but I always felt that the Jiugongge phone number keyboard The English letters are too much in the way. So I wanted to try other implementation solutions, but the final conclusion was frustrating. However, I also took the opportunity to learn more about the pattern attribute.
3. Introduction to how js determines whether it is a mobile page
##Introduction: This article mainly introduces the method of js to determine whether it is a mobile page. It has a very good reference value. Let’s take a look at it with the editor.
4. How to solve the problem of disabling paste and copy when long pressing on mobile pages in HTML5
Introduction: This article mainly introduces relevant information on the HTML5 solution to the problem of disabling paste and copy when long pressing on mobile pages. , very good, with reference value, friends in need can refer to it
5. html2canvas How to generate high-definition pictures
Introduction: Requirement My requirement is to convert a piece of html into a picture on the mobile page so that the user can save it, so the previous piece of html does not need to be displayed. Normal rendering using html2canvas will display very blurry on the mobile phone. The code is as follows: {code...} The plug-in canvas2imag is also used in the example...
6. javascript - Mobile form submission page, if the network is slow , the form will be submitted twice
Introduction: The mobile website submission page works normally when the network is good. When the network is slow, the mobile page will always be loading, but Fiddler catches it. There are two submissions with the same content. How to avoid this happening?
7. javascript - After the angulajs page is minimized, the countdown timer stops
Introduction: There are After the countdown angulajs page is minimized, the countdown timer stops. After the chrome browser is minimized, the countdown stops. After maximizing, the time before minimizing continues to count down. The same goes for the mobile page. Is there any solution?
8. The scroll bar does not scroll on the mobile page in marquee. . . _html/css_WEB-ITnose
Introduction: The scroll bar does not scroll on the mobile page in marquee. . .
9. The problem of adding text to the picture on the mobile page_html/css_WEB-ITnose
Introduction: The problem of adding text to the picture on the mobile page
10. The web page is placed on the mobile phone page, scaling problem_html/css_WEB-ITnose
Introduction: web The page is placed on the mobile page, and the scaling problem
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The above is the detailed content of 10 recommended articles about mobile pages. For more information, please follow other related articles on the PHP Chinese website!

HTML5 code consists of tags, elements and attributes: 1. The tag defines the content type and is surrounded by angle brackets, such as. 2. Elements are composed of start tags, contents and end tags, such as contents. 3. Attributes define key-value pairs in the start tag, enhance functions, such as. These are the basic units for building web structure.

HTML5 is a key technology for building modern web pages, providing many new elements and features. 1. HTML5 introduces semantic elements such as, , etc., which enhances web page structure and SEO. 2. Support multimedia elements and embed media without plug-ins. 3. Forms enhance new input types and verification properties, simplifying the verification process. 4. Offer offline and local storage functions to improve web page performance and user experience.

Best practices for H5 code include: 1. Use correct DOCTYPE declarations and character encoding; 2. Use semantic tags; 3. Reduce HTTP requests; 4. Use asynchronous loading; 5. Optimize images. These practices can improve the efficiency, maintainability and user experience of web pages.

Web standards and technologies have evolved from HTML4, CSS2 and simple JavaScript to date and have undergone significant developments. 1) HTML5 introduces APIs such as Canvas and WebStorage, which enhances the complexity and interactivity of web applications. 2) CSS3 adds animation and transition functions to make the page more effective. 3) JavaScript improves development efficiency and code readability through modern syntax of Node.js and ES6, such as arrow functions and classes. These changes have promoted the development of performance optimization and best practices of web applications.

H5 is not just the abbreviation of HTML5, it represents a wider modern web development technology ecosystem: 1. H5 includes HTML5, CSS3, JavaScript and related APIs and technologies; 2. It provides a richer, interactive and smooth user experience, and can run seamlessly on multiple devices; 3. Using the H5 technology stack, you can create responsive web pages and complex interactive functions.

H5 and HTML5 refer to the same thing, namely HTML5. HTML5 is the fifth version of HTML, bringing new features such as semantic tags, multimedia support, canvas and graphics, offline storage and local storage, improving the expressiveness and interactivity of web pages.

H5referstoHTML5,apivotaltechnologyinwebdevelopment.1)HTML5introducesnewelementsandAPIsforrich,dynamicwebapplications.2)Itsupportsmultimediawithoutplugins,enhancinguserexperienceacrossdevices.3)SemanticelementsimprovecontentstructureandSEO.4)H5'srespo

The tools and frameworks that need to be mastered in H5 development include Vue.js, React and Webpack. 1.Vue.js is suitable for building user interfaces and supports component development. 2.React optimizes page rendering through virtual DOM, suitable for complex applications. 3.Webpack is used for module packaging and optimize resource loading.


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