Dialogs, snackbars, and toasts Dialogs, snackbars and toasts all appear as a separate sheet, overlaying the background. The paper element collection includes two elements. A dialog (<paper-dialog>) is a modal window that can include a title, text, action buttons, and other controls. A snackbar or toast (<paper-toast>) is a small, transient popup that includes a message and optionally a single acti
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