HTML中IE条件注释判断语句(<![if XX IE X]><![endif]>)_html/css_WEB-ITnose
是IE专门提供的一种语法,其他浏览器会将其作为注释而忽略这些语句。
作用:
根据不同的IE版本加载对应的CSS或者JS文件了,例如下面截图所示:
(代码)
(Chrome浏览器)
(IE浏览器)
下面列子:
除IE外都可识别
符号说明:
! | [if !IE] | The NOT operator. This is placed immediately in front of the feature, operator, or subexpression to reverse the Boolean meaning of the expression. NOT运算符。这是摆立即在前面的功能,操作员,或子表达式扭转布尔表达式的意义。 |
lt | [if lt IE 5.5] | The less-than operator. Returns true if the first argument is less than the second argument. 小于运算符。如果第一个参数小于第二个参数,则返回true。 |
lte | [if lte IE 6] | The less-than or equal operator. Returns true if the first argument is less than or equal to the second argument. 小于或等于运算。如果第一个参数是小于或等于第二个参数,则返回true。 |
gt | [if gt IE 5] | The greater-than operator. Returns true if the first argument is greater than the second argument. 大于运算符。如果第一个参数大于第二个参数,则返回true。 |
gte | [if gte IE 7] | The greater-than or equal operator. Returns true if the first argument is greater than or equal to the second argument. 大于或等于运算。如果第一个参数是大于或等于第二个参数,则返回true。 |
( ) | [if !(IE 7)] | Subexpression operators. Used in conjunction with boolean operators to create more complex expressions. 子表达式运营商。在与布尔运算符用于创建更复杂的表达式。 |
& | [if (gt IE 5)&(lt IE 7)] | The AND operator. Returns true if all subexpressions evaluate to true AND运算符。如果所有的子表达式计算结果为true,返回true |
| | [if (IE 6)|(IE 7)] | The OR operator. Returns true if any of the subexpressions evaluates to true. OR运算符。返回true,如果子表达式计算结果为true。 |

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

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati

HTML is suitable for beginners because it is simple and easy to learn and can quickly see results. 1) The learning curve of HTML is smooth and easy to get started. 2) Just master the basic tags to start creating web pages. 3) High flexibility and can be used in combination with CSS and JavaScript. 4) Rich learning resources and modern tools support the learning process.

The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

The article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.

The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex

The article discusses the viewport meta tag, essential for responsive web design on mobile devices. It explains how proper use ensures optimal content scaling and user interaction, while misuse can lead to design and accessibility issues.

HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
