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Detailed explanation of the usage of position attribute in HTML (four types)

The four attribute values of position: 1.relative2.absolute3.fixed4.static These four attributes are described below.<div id=parent><div id=sub1> sub1</div>

2025-02-10
Blocking IE pop -up & quot; The webpage you checked is trying to close the window, whether to close this window & quot;

The sample code in IE6 is as follows: Window.opner = NULL; Window.close (); Example code in ie7 is as follows: window.opner = null; window.open ("", "_ seld"); Window.close (); like

2025-02-10
Discussion on JavaScript Objects

Due to the flexibility of JavaScript, everyone can write code according to their own habits. There are functional programming methods and there are also a wider range of object literals used now. Due to the emergence of object-oriented, the function progr

2025-02-10
Detailed explanation of built-in javascript object arguments

1. What are argumentsarguments? It is a built-in object in JavaScript. It is weird and often overlooked, but it is actually very important. All major js function libraries utilize arguments objects. So the agraments object for javascript

2025-02-10
html5 cross-domain communication method through postMessage

I recently encountered a need at work. The scenario is: the h5 page is embedded in the PC page as a preview module. The user can do some operations on the PC page, and then the h5 page makes responsive changes to achieve the preview effect. The first thin

2025-02-10
HTML/CSS Basic Article -Several vigilance points in HTML code writing (must be seen)

The alert point that I want to say in this article has nothing to do with the browser compatibility. It is mainly the summary of several small problems I encountered in the project. Although the problem is small, it is sometimes bothered. Class problems w

2025-02-10
Common compatibility problems and related solutions of JavaScript (Chrome/IE/Firefox)

First of all, let's declare here. About the version of my browser is chrome15.0.874.121 Firefox 8.01 IE9 IETETETESTER. About Statement 1: Copy code for the scroll bar.

2025-02-10
Add a blessing page to the website that can dynamically display the name and text

A similar blessing page is actually a well-made web page template, and then the name is displayed in the appropriate location by code calls. In this way, you only need to add a name encoding to the web page address to display the desired text. If you add

2025-02-10
Html5 implementation file asynchronous upload function

1 Introduction to the upload function of the development file is never a pleasant thing, and it is even more so uploaded asynchronous. The upload scheme using iframe and Flash has also felt very awkward. This article briefly uses the FormData of HTML5 to

2025-02-10
Eight tips for very useful CSS web page layout

CSS web layout is difficult, but it is actually very simple. It is easy to say, and often there are many problems that bother novices. In this article, many tips and knowledge can help you with twice the result with half the effort. However, more often, w

2025-02-10
A method to insert a new element outside each matching element

1. Method wrap: wrap all matching elements with the structure of other elements wrapAll: wrap all matching elements with a single element wrapInner: wrap the subclasses of the matching elements with the html structure 2. Example (1 )wrap copy code The cod

2025-02-10
Optimize websites with Pagespeed

First of all, Pagespeed is a website optimization tool based on the Firefox Firebug plug-in released by Google after announcing that it will include website speed in the PR evaluation criteria. It can automatically analyze page content and provide very de

2025-02-10
Detailed explanation of JavaScript debugging skills: console.log()

1. What is console.log()? Except for some very old versions of browsers, most browsers nowadays come with debugging functions; even if there is no debugging function, they can be supplemented by installing plug-ins. For example, the old version of Firefox

2025-02-10
JS determines the browser type and version by analyzing the userAgent attribute

JavaScript is the main language of front-end development. We can judge the type and version of the browser by writing JavaScript programs. There are generally two ways to judge browser types in JavaScript. One is to distinguish them based on the unique at

2025-02-10
How to create a very beautiful web page

Site Positioning > Planning Plan > Data Collection > Site Frame Setting > Site Process Definition > Frame Sketches for Column Pages at All Levels > Sample Pictures for Column Pages at All Levels > Page Template for Making Pages> St

2025-02-10

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