This text will be green if the rule has been applied.
#te\stElement {
color: #00cc00;
}
Because IE 6.x will behave like IE 5.5 if it is in quirks mode, any hack used to account for the differences in behaviour between IE 6 in standards mode and Win IE 5.x will not work as planned. Be sure that your HTML document will be interpretted in standards mode in IE 6 if you are going to use this hack (or others like the High Pass Filter, Simplified Box Model, or Inline High Pass Filter).
The entire stylesheet that contains a declaration with an escape in it will be ignored. None of the rules will be applied to the document.
Causes a Javascript error.
This hack is just a variation on the Simplified Box Model Hack but allows all the declarations applied to a selector to be ignored instead of just a single declaration.
Like all hacks that use escaping, the character after the \ must not be between '0' and '9' or 'a' and 'f' (or 'A' and 'F') because these can be interpreted as hex character codes and not as the literal character.