How to achieve position:fixed effect under IE6:
Suggestion: Handwrite the code as much as possible, which can effectively improve the efficiency and depth of learning.
Since IE6 does not support position:fixed, many good effects cannot be achieved. However, it is not impossible to achieve this effect under IE6. Here is an example to introduce how to achieve this effect. Code examples are as follows:
<!DOCTYPE html><html><head><meta charset=" utf-8"><title>IE6下实现position:fixed-蚂蚁部落</title><style type="text/css">body{ margin:40px; padding:0px; border:1px solid blue;}.first{ width:300px; height:600px; border:1px solid red; margin:20px;}.first .fixed{ width:100px; height:100px; background-color:black; position:fixed; _margin-top:20px; _position:absolute; _top:expression(eval(document.documentElement.scrollTop)); left:20px; top:20px;}</style></head><body><div class="first"> <div class="fixed"></div></div></body></html> The above code is compatible with IE6 and other mainstream browsers. The core code to achieve this effect is:
_top:expression(eval(document.documentElement.scrollTop));
Note: After adding the above line of code, the top function is disabled under IE6, so a _margin-top must be added.
Although the above code achieves the desired function, there is still a problem, that is, shaking occurs when the scroll bar is dragged. The code is modified as follows:
<!DOCTYPE html><html><head><meta charset=" utf-8"><title>IE6下实现position:fixed-蚂蚁部落</title><style type="text/css">*{ margin:0px; padding:0px;}body{height:1000px;}#thediv{ width:100px; height:100px; background-color:#CCC; position:fixed; _margin-top:20px; _position:absolute; _top:expression(eval(document.documentElement.scrollTop)); left:20px; top:20px; text-align:center; line-height:100px;}</style><script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script><script type="text/javascript">$(function(){ $(window).scroll(function(){ $("#thediv").text($(window).scrollTop()); })}); </script></head><body><div id="thediv"></div></body></html> The above code perfectly realizes the function we want. Based on the first example, add the following code:
*html{ background-image:url(about:blank); background-attachment:fixed;} The original address is: http://www.51texiao.cn/div_cssjiaocheng/2015/0405/144.html
What are self-closing tags? Give an example.Apr 27, 2025 am 12:04 AMSelf-closingtagsinHTMLandXMLaretagsthatclosethemselveswithoutneedingaseparateclosingtag,simplifyingmarkupstructureandenhancingcodingefficiency.1)TheyareessentialinXMLforelementswithoutcontent,ensuringwell-formeddocuments.2)InHTML5,usageisflexiblebutr
Beyond HTML: Essential Technologies for Web DevelopmentApr 26, 2025 am 12:04 AMTo build a website with powerful functions and good user experience, HTML alone is not enough. The following technology is also required: JavaScript gives web page dynamic and interactiveness, and real-time changes are achieved by operating DOM. CSS is responsible for the style and layout of the web page to improve aesthetics and user experience. Modern frameworks and libraries such as React, Vue.js and Angular improve development efficiency and code organization structure.
What are boolean attributes in HTML? Give some examples.Apr 25, 2025 am 12:01 AMBoolean attributes are special attributes in HTML that are activated without a value. 1. The Boolean attribute controls the behavior of the element by whether it exists or not, such as disabled disable the input box. 2.Their working principle is to change element behavior according to the existence of attributes when the browser parses. 3. The basic usage is to directly add attributes, and the advanced usage can be dynamically controlled through JavaScript. 4. Common mistakes are mistakenly thinking that values need to be set, and the correct writing method should be concise. 5. The best practice is to keep the code concise and use Boolean properties reasonably to optimize web page performance and user experience.
How can you validate your HTML code?Apr 24, 2025 am 12:04 AMHTML code can be cleaner with online validators, integrated tools and automated processes. 1) Use W3CMarkupValidationService to verify HTML code online. 2) Install and configure HTMLHint extension in VisualStudioCode for real-time verification. 3) Use HTMLTidy to automatically verify and clean HTML files in the construction process.
HTML vs. CSS and JavaScript: Comparing Web TechnologiesApr 23, 2025 am 12:05 AMHTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.
HTML as a Markup Language: Its Function and PurposeApr 22, 2025 am 12:02 AMThe function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.
The Future of HTML, CSS, and JavaScript: Web Development TrendsApr 19, 2025 am 12:02 AMThe future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.
HTML: The Structure, CSS: The Style, JavaScript: The BehaviorApr 18, 2025 am 12:09 AMThe roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
