QS:CSS Class

Description If you want to add special CSS classes to certain questions you can enter the CSS class name(s) at this question attribute. Make sure to enter a space between different class names.

Valid values Any text string with a space between different CSS class names. According to the W3C CSS class names can contain only the characters [a-zA-Z0-9] and ISO 10646 characters U+00A1 and higher, plus the hyphen (-) and the underscore (_); they cannot start with a digit, or a hyphen followed by a digit.