3.html conditional comment to determine compatibility with IE version

Written in the previous words:

Find the ~

Usage:

<!– The Css.css style sheet is called first by default –><Linkrel= "stylesheet"type= "Text/css"href= "Css.css"/><!–[if! IE]> <!– 1.CSS style sheet for non-ie downgrade –><Linkrel= "stylesheet"type= "Text/css"href= "1.css"/> <![endif]–><!–[if Lt IE 6]><!– If the Internet Explorer version is less than 6, call the 2.css style sheet –><Linkrel= "stylesheet"type= "Text/css"href= "2.css"/><![endif]–> 

Note: Conditional comments are not supported until after Ie5/win, and are not supported in the IE version browser before IE5.

In the preceding code snippet, several of the parameters worth mentioning are:

1.lte: is less than or equal to the shorthand, that is, smaller or equal to the meaning.

2.LT: is less than shorthand, that is, smaller than the meaning.

3.gte: is greater than or equal to the shorthand, that is, greater than or equal to the meaning.

4.GT: is greater than shorthand, that is, the meaning of greater than.

5.! : Is not equal to the meaning, and JS is not equal to the same judgment.

3.html conditional comment to determine compatibility with IE version