viewport
fun ElementCreator<HeadElement>.viewport(attributes: Map<String, JsonPrimitive> = emptyMap(), width: ViewportWidth = ViewportWidth.DeviceWidth, height: ViewportHeight = ViewportHeight.DeviceHeight, initialScale: Double = 1.0, minimumScale: Double = 0.1, maximumScale: Double = 10.0, userScalable: UserScalable = UserScalable.Yes, new: ElementCreator<MetaElement>.(MetaElement) -> Unit? = null): MetaElement(source)
Viewport and related classes *