Dynamic style sheet creation in different browsers test code _ javascript skills

For standard browsers, you can directly use css. innerHTML to modify the css rules of HTMLStyleElement. The Code is as follows:

Xxx
Script
Var css = document. createElement ('style ');
Css. setAttribute ('type', 'text/css ');
Var cssText = 'span {color: Red ;}';
If (css. styleSheet) {// IE
Css.styleSheet.css Text = cssText
} Else {
Css. appendChild (document. createTextNode (cssText ));
}
Document. getElementsByTagName ("head") [0]. appendChild (css );
Script

For standard browsers, you can directly use css. innerHTML to modify the css rules of HTMLStyleElement;
However, IE may cause an "unknow runtime error ".