gecko-dev/toolkit/themes/shared/notification.css

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
@namespace html "http://www.w3.org/1999/xhtml";

.notificationbox-stack {
  /* Prevent the animation from overlapping the navigation toolbar */
  overflow: clip;
}

.notificationbox-stack[notificationside="top"] {
  /* Create a stacking context for the box-shadow */
  position: relative;
  z-index: 1;
}

notification {
  min-height: 40px;
  padding-inline-start: 16px;
  background: var(--notification-background);
  color: var(--notification-text);
  border-color: var(--notification-border);
  border-style: solid;
  border-width: 1px 0;
  text-shadow: none;
  font-size: 1.15em;

  --notification-background: Window;
  --notification-text: WindowText;
  --notification-border: rgba(12, 12, 13, 0.2);
  --notification-button-background: rgba(12,12,13,.1);
  --notification-button-background-hover: rgba(12,12,13,0.2);
  --notification-button-background-active: rgba(12,12,13,0.3);
  --notification-button-text: inherit;
  --notification-primary-button-background: #0060df;
  --notification-primary-button-background-hover: #003eaa;
  --notification-primary-button-background-active: #002275;
  --notification-primary-button-text: rgb(249, 249, 250);
}

@media (prefers-color-scheme: dark) {
  notification[type="info"]:-moz-lwtheme {
    --notification-background: #38383d;
    --notification-text: rgb(249, 249, 250);
  }

  notification[type="info"] {
    --notification-button-background: rgba(249,249,250,.1);
    --notification-button-background-hover: rgba(249,249,250,.2);
    --notification-button-background-active: rgba(249,249,250,.3);
  }
}

html|notification-message.animated,
notification.animated {
  transition: margin-top 300ms var(--animation-easing-function), opacity 300ms var(--animation-easing-function);
}

.notificationbox-stack[notificationside="top"] > notification {
  border-top-style: none;
}

.notificationbox-stack[notificationside="bottom"] > notification {
  border-bottom-style: none;
}

notification[type="warning"] {
  --notification-background: #ffe900;
  --notification-text: #0c0c0d;
}

notification[type="critical"] {
  --notification-background: #d70022;
  --notification-text: #fff;
}

notification[type="critical"] > .close-icon:hover {
  background-color: color-mix(in srgb, currentColor 20%, transparent);
}

notification[type="critical"] > .close-icon:hover:active {
  background-color: color-mix(in srgb, currentColor 30%, transparent);
}

.messageText {
  margin-inline-start: 12px !important;
  margin-block: 0;
}

.messageText > .text-link {
  text-decoration: underline;
  margin-block: 0;
}

.messageText > .text-link:not(.notification-link) {
  color: inherit !important;
  margin-inline: 0;
}

.messageImage {
  width: 24px;
  margin: 4px 0;
  -moz-context-properties: fill;
  fill: currentColor;
}

notification[type="info"] > hbox > .messageImage {
  list-style-image: url("chrome://global/skin/icons/help.svg");
}

notification[type="warning"] > hbox > .messageImage {
  list-style-image: url("chrome://global/skin/icons/warning.svg");
}

notification[type="critical"] > hbox > .messageImage {
  list-style-image: url("chrome://global/skin/icons/error.svg");
}

.messageCloseButton {
  margin: 0;
  padding: 0;
}

.messageCloseButton > .toolbarbutton-icon {
  padding: 6px;
  width: 32px;
  /* Close button needs to be clickable from the edge of the window */
  margin-inline-end: 8px;
}

.messageCloseButton:focus-visible {
  /* Override the dotted outline from button.css */
  outline: none;
}

.messageCloseButton:focus-visible > .toolbarbutton-icon {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-inset);
  border-radius: var(--toolbarbutton-border-radius, 4px);
}

.notification-button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 4px;
  background-color: var(--notification-button-background);
  color: var(--notification-button-text);
  padding: 0 6px;
  margin: 4px 8px;
  height: 24px;
}

.notification-button[disabled] {
  opacity: 0.5;
}

.notification-button:not([disabled]):hover {
  background-color: var(--notification-button-background-hover);
}

.notification-button:not([disabled]):hover:active {
  background-color: var(--notification-button-background-active);
}

.notification-button:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-offset);
}

.notification-button.primary {
  background-color: var(--notification-primary-button-background);
  color: var(--notification-primary-button-text);
}

.notification-button.primary:not([disabled]):hover {
  background-color: var(--notification-primary-button-background-hover);
}

.notification-button.primary:not([disabled]):hover:active {
  background-color: var(--notification-primary-button-background-active);
}

.notificationbox-stack {
  background-color: var(--toolbar-bgcolor);
  width: 100%;
}