Home Web Front-end CSS Tutorial Use CSS hack technology to solve browser compatibility issues

Use CSS hack technology to solve browser compatibility issues

Apr 05, 2017 am 10:55 AM
css hack compatibility Browser

什么是CSS Hack?

  不同的浏览器对CSS的解析结果是不同的,因此会导致相同的CSS输出的页面效果不同,这就需要CSS Hack来解决浏览器局部的兼容性问题。而这个针对不同的浏览器写不同的CSS 代码的过程,就叫CSS Hack。

CSS Hack 形式

  CSS Hack大致有3种表现形式:CSS属性Hack、CSS选择符Hack以及IE条件注释Hack, Hack主要针对IE浏览器。

  1、属性级Hack:比如IE6能识别下划线"_"和星号" * ",IE7能识别星号" * ",但不能识别下划线"_",而firefox两个都不能认识。等等

  2、选择符级Hack:比如IE6能识别*html .class{},IE7能识别*+html .class{}或者*:first-child+html .class{}。等等

  3、IE条件注释Hack:比如针对所有IE:,针对IE6及以下版本:,这类Hack不仅对CSS生效,对写在判断语句里面的所有代码都会生效。

  注意书写顺序:一般是将识别能力强的浏览器的CSS写在后面。通常先写FF等非IE浏览器所需样式,其次写IE8所需样式,接着是IE7的,再接着才是IE6的。

常用CSS hack

  admin10000.com整理,以 color:red 将字体设置为红色为例:

/* CSS属性级Hack */
color:red;    /* 所有浏览器可识别*/
_color:red;     /*  仅IE6 识别 */
*color:red;    /*  IE6、IE7 识别 */
+color:red;    /*  IE6、IE7 识别 */
*+color:red;    /*  IE6、IE7 识别 */
[color:red;    /*  IE6、IE7 识别 */
color:red\9;    /* IE6、IE7、IE8、IE9 识别 */
color:red\0;    /* IE8、IE9 识别*/
color:red\9\0;    /* 仅IE9识别 */
color:red \0;    /* 仅IE9识别 */
color:red!important; /* IE6 不识别!important 详情参见*/
-------------------------------------------------------------
/* CSS选择符级Hack */
*html #demo { color:red;}   /*  仅IE6 识别 */
*+html #demo { color:red;}  /*  仅IE7 识别 */
body:nth-of-type(1) #demo { color:red;} /* IE9+、FF3.5+、Chrome、Safari、Opera 可以识别 */
head:first-child+body #demo { color:red; } /* IE7+、FF、Chrome、Safari、Opera 可以识别 */
:root #demo { color:red\9; } : /* 仅IE9识别 */
--------------------------------------------------------------
/* IE条件注释Hack 详情参见 */
<!--[if IE]>此处内容只有IE可见<![endif]--> 
<!--[if IE 6]>此处内容只有IE6.0可见<![endif]--> 
<!--[if IE 7]>此处内容只有IE7.0可见<![endif]--> 
<!--[if gte IE 6]> IE6以及IE6以上版本可识别 <![endif]-->
<!--[if lt IE 7]> IE7以及IE7以下版本可识别 <![endif]-->
<!--[if gte IE 7]> IE7以及IE7以上版本可识别 <![endif]-->
<!--[if !IE]>此处内容只有非IE可见<![endif]-->
Copy after login

  注意:css hack虽然可以解决个浏览器之间css显示的差异问题,但是毕竟不符合W3C规范,我们平时写css最好是按照标准来,这样对我们以后维护也是大有好处的,实在不行再用。

比较著名的css hack 兼容一览图:http://centricle.com/ref/css/filters/
相关文档:最全的CSS浏览器兼容问题
 

The above is the detailed content of Use CSS hack technology to solve browser compatibility issues. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

HTML: The Structure, CSS: The Style, JavaScript: The Behavior HTML: The Structure, CSS: The Style, JavaScript: The Behavior Apr 18, 2025 am 12:09 AM

The 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.

Solve caching issues in Craft CMS: Using wiejeben/craft-laravel-mix plug-in Solve caching issues in Craft CMS: Using wiejeben/craft-laravel-mix plug-in Apr 18, 2025 am 09:24 AM

When developing websites using CraftCMS, you often encounter resource file caching problems, especially when you frequently update CSS and JavaScript files, old versions of files may still be cached by the browser, causing users to not see the latest changes in time. This problem not only affects the user experience, but also increases the difficulty of development and debugging. Recently, I encountered similar troubles in my project, and after some exploration, I found the plugin wiejeben/craft-laravel-mix, which perfectly solved my caching problem.

Laravel8 optimization points Laravel8 optimization points Apr 18, 2025 pm 12:24 PM

Laravel 8 provides the following options for performance optimization: Cache configuration: Use Redis to cache drivers, cache facades, cache views, and page snippets. Database optimization: establish indexing, use query scope, and use Eloquent relationships. JavaScript and CSS optimization: Use version control, merge and shrink assets, use CDN. Code optimization: Use Composer installation package, use Laravel helper functions, and follow PSR standards. Monitoring and analysis: Use Laravel Scout, use Telescope, monitor application metrics.

How to simplify CMS development with Composer: Practical application of the Lebenlabs/SimpleCMS library How to simplify CMS development with Composer: Practical application of the Lebenlabs/SimpleCMS library Apr 18, 2025 am 09:45 AM

When developing a new content management system (CMS), I encountered a common but difficult problem: how to quickly build a fully functional CMS without adding too much complexity. There are many ready-made CMS solutions available on the market, but they are often too large and complex to configure and can be a burden for small projects. After some exploration, I discovered the lebenlabs/simplecms library, which provides a simple and efficient solution through Composer.

Which 2025 currency exchanges are more secure? Which 2025 currency exchanges are more secure? Apr 20, 2025 pm 06:09 PM

The top ten safe and reliable exchanges in the 2025 cryptocurrency circle include: 1. Binance, 2. OKX, 3. Gate.io (Sesame Open), 4. Coinbase, 5. Kraken, 6. Huobi Global, 7. Gemini, 8. Crypto.com, 9. Bitfinex, 10. KuCoin. These exchanges are rated as safe and reliable based on compliance, technical strength and user feedback.

What is the reason why the browser does not respond after the WebSocket server returns 401? How to solve it? What is the reason why the browser does not respond after the WebSocket server returns 401? How to solve it? Apr 19, 2025 pm 02:21 PM

The browser's unresponsive method after the WebSocket server returns 401. When using Netty to develop a WebSocket server, you often encounter the need to verify the token. �...

How to learn iaravel How to learn iaravel Apr 18, 2025 pm 12:21 PM

The steps to learn Laravel are: Have basic knowledge of PHP. Install the Laravel framework. Learn about Laravel architecture. Learn basic syntax: route, controller, view, model. Build a small application practice framework for use. See the official documentation for detailed guidance. Join the community to exchange experiences and seek help. Stay updated and pay attention to new features.

How to correctly generate and display the WeChat applet with parameters QR codes in Java? How to correctly generate and display the WeChat applet with parameters QR codes in Java? Apr 19, 2025 pm 04:48 PM

Generating a WeChat applet QR code with parameters in Java and displaying it on an HTML page is a common requirement. This article will discuss in detail how to use J...

See all articles