cssText method
Implementation
String cssText() {
switch (this) {
case CSSBackgroundBoundary.borderBox:
return 'border-box';
case CSSBackgroundBoundary.paddingBox:
return 'padding-box';
case CSSBackgroundBoundary.contentBox:
return 'content-box';
case CSSBackgroundBoundary.text:
return 'text';
}
}