Interface VTTStyleDeclaration

interface VTTStyleDeclaration {
    background: string;
    backgroundAttachement: string;
    backgroundClip: string;
    backgroundColor: string;
    backgroundImage: string;
    backgroundOrigin: string;
    backgroundPosition: string;
    backgroundRepeat: string;
    backgroundSize: string;
    color: string;
    font: string;
    fontFamily: string;
    fontSize: string;
    fontStretch: string;
    fontStyle: string;
    fontVariant: string;
    fontWeight: string;
    lineHeight: string;
    opacity: string;
    outline: string;
    outlineColor: string;
    outlineStyle: string;
    outlineWidth: string;
    rubyPosition: string;
    textCombineUpright: string;
    textDecoration: string;
    textDecorationColor: string;
    textDecorationLine: string;
    textDecorationStyle: string;
    textDecorationThickness: string;
    textShadow: string;
    visibility: string;
    whiteSpace: string;
}