The HTTP Priority header indicates a client's preference for the priority order at which the response containing the requested resource should be sent, relative to other resource requests on the same connection.
If the header is not specified in the request, a default priority is assumed.
The server may also include this header in responses in order to indicate it has an interest in changing the prioritization preferences the client advertized.
In responses, this information can be used as an input to the prioritization process for caching servers and other servers that are forwarding the response....View this page on GitHub • Report a problem with this content...
The WebSocket API makes it possible to open a two-way interactive communication session between the user's browser and a server. With this API, you can send messages to a server and receive responses without having to poll the server for a reply....View this page on GitHub • Report a problem with this content...
The aria-label attribute defines a string value that can be used to name an element, as long as the element's role does not prohibit naming....View this page on GitHub • Report a problem with this content...
The view-timeline-inset CSS property is used to specify one or two values representing an adjustment to the position of the scrollport (see Scroll container for more details) in which the subject element of a named view progress timeline animation is deemed to be visible. Put another way, this allows you to specify start and/or end inset (or outset) values that offset the position of the timeline....View this page on GitHub • Report a problem with this content...
Атрибут pattern определяет регулярное выражение, которому должно соответствовать значение элемента формы. Если ненулевое значение не соответствует ограничениям, установленным в pattern, доступное только для чтения свойство patternMismatch объекта ValidityState будет истинным....View this page on GitHub • Report a problem with this content...
The opacity CSS property sets the opacity of an element. Opacity is the degree to which content behind an element is hidden, and is the opposite of transparency....View this page on GitHub • Report a problem with this content...
En esta evaluación, pondremos a prueba tu conocimiento de algunas de las técnicas mostradas en los artículos de este módulo, ¡para que tú agregues algunas imágenes y videos a una página de bienvenida de Mozzilla!....View this page on GitHub • Report a problem with this content...