firefox/browser/components/screenshots/overlay/overlay.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/. */

@import url("chrome://global/skin/in-content/common.css");

:host {
  display: contents;

  /* These z-indexes are used to correctly layer elements in the screenshots overlay */
  --screenshots-lowest-layer: 1;
  --screenshots-low-layer: 2;
  --screenshots-high-layer: 3;
  --screenshots-highest-layer: 4;
}

[hidden] {
  display: none !important;
}

#screenshots-component {
  position: absolute;
  inset: 0;
  font: message-box;
  user-select: none;
  touch-action: none;
  pointer-events: auto;
  cursor: crosshair;

  &[dragging] {
    cursor: grabbing;
  }

  &[resizing] {
    position: fixed;
    width: 100% !important;
    height: 100% !important;
  }
}

#selection-container {
  overflow: clip;
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#preview-container {
  overflow: clip;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 0;
  inset-inline: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.7);
}

#buttons-container {
  position: absolute;
  margin: 10px 0;
  cursor: auto;
  z-index: var(--screenshots-highest-layer);
}

#selection-size,
#buttons-container {
  padding: 4px;
  background-color: var(--in-content-page-background);
  color: var(--in-content-text-color);
  border-radius: 4px;
}

#selection-size {
  border: var(--border-width) solid var(--in-content-border-color);
  box-shadow: var(--box-shadow-popup);
}

.buttons-wrapper,
#selection-size-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshots-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xsmall);
  cursor: pointer;
  text-align: center;
  user-select: none;
  white-space: nowrap;
  z-index: var(--screenshots-highest-layer);
  min-width: 32px;
  margin-inline: 4px;
}

#selection-size-container {
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: var(--screenshots-lowest-layer);
}

#screenshots-cancel-button {
  margin-top: 20px;
  border-color: #fff;
  color: #fff;

  @media (forced-colors) {
    background-color: var(--in-content-button-background);
    color: var(--in-content-button-text-color);
    border-color: var(--in-content-button-border-color);
  }
}

#screenshots-cancel-button:hover {
  background-color: #fff;
  color: #000;

  @media (forced-colors) {
    background-color: var(--in-content-button-background-hover);
    color: var(--in-content-button-text-color-hover);
    border-color: var(--in-content-button-border-color-hover);
  }
}

.screenshots-button > img {
  -moz-context-properties: fill;
  fill: currentColor;
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.screenshots-button > label {
  pointer-events: none;
}

#cancel > img {
  content: url("chrome://global/skin/icons/close.svg");
}

#copy > img {
  content: url("chrome://global/skin/icons/edit-copy.svg");
}

#download > img {
  content: url("chrome://browser/skin/downloads/downloads.svg");
}

#face-container {
  position: relative;

  @media (forced-colors) {
    display: none;
  }
}

.face {
  width: 64px;
  height: 64px;
  background-image: url("chrome://browser/content/screenshots/icon-welcome-face-without-eyes.svg");
}

.eye {
  background-color: #fff;
  width: 10px;
  height: 14px;
  position: absolute;
  border-radius: 100%;
  overflow: hidden;
  inset-inline-start: 16px;
  top: 19px;
}

.eyeball {
  position: absolute;
  width: 6px;
  height: 6px;
  background-color: #000;
  border-radius: 50%;
  inset-inline-start: 2px;
  top: 4px;
  z-index: var(--screenshots-high-layer);
}

.left {
  margin-inline-start: 0;
}

.right {
  margin-inline-start: 20px;
}

.preview-instructions {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 125ms cubic-bezier(0.07, 0.95, 0, 1);
  color: #fff;
  font-size: 24px;
  line-height: 32px;
  text-align: center;
  padding: 20px;
  width: 400px;

  @media (forced-colors) {
    color: CanvasText;
    background-color: Canvas;
  }
}

#hover-highlight {
  animation: fade-in 125ms forwards cubic-bezier(0.07, 0.95, 0, 1);
  background: rgba(255, 255, 255, 0.2);
  border: 2px dashed rgba(255, 255, 255, 0.4);
  border-radius: 1px;
  box-sizing: border-box;
  pointer-events: none;
  position: absolute;
  z-index: var(--screenshots-high-layer);
}

#top-background {
  top: 0;
  left: 0;
  width: 100%;
}

#left-background {
  left: 0;
}

#bottom-background {
  left: 0;
  width: 100%;
}

.bghighlight {
  background-color: rgba(0, 0, 0, 0.7);
  position: absolute;
  overflow: clip;
  pointer-events: none;
  /* FIXME(bug 1859421): This shouldn't be needed */
  z-index: -1;
}

.highlight {
  border: 2px dashed rgba(255, 255, 255, 0.8);
  box-sizing: border-box;
  cursor: move;
  position: absolute;
  pointer-events: auto;
  z-index: var(--screenshots-lowest-layer);
  outline-offset: 8px;
}

.mover-target {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  z-index: var(--screenshots-high-layer);
  pointer-events: auto;
  outline-offset: -15px;
}

.mover-target.direction-topLeft {
  cursor: nwse-resize;
  height: 60px;
  left: -30px;
  top: -30px;
  width: 60px;
}

.mover-target.direction-top {
  cursor: ns-resize;
  height: 60px;
  inset-inline-start: 0;
  top: -30px;
  width: 100%;
  z-index: var(--screenshots-low-layer);
}

.mover-target.direction-topRight {
  cursor: nesw-resize;
  height: 60px;
  right: -30px;
  top: -30px;
  width: 60px;
}

.mover-target.direction-left {
  cursor: ew-resize;
  height: 100%;
  left: -30px;
  top: 0;
  width: 60px;
  z-index: var(--screenshots-low-layer);
}

.mover-target.direction-right {
  cursor: ew-resize;
  height: 100%;
  right: -30px;
  top: 0;
  width: 60px;
  z-index: var(--screenshots-low-layer);
}

.mover-target.direction-bottomLeft {
  bottom: -30px;
  cursor: nesw-resize;
  height: 60px;
  left: -30px;
  width: 60px;
}

.mover-target.direction-bottom {
  bottom: -30px;
  cursor: ns-resize;
  height: 60px;
  inset-inline-start: 0;
  width: 100%;
  z-index: var(--screenshots-low-layer);
}

.mover-target.direction-bottomRight {
  bottom: -30px;
  cursor: nwse-resize;
  height: 60px;
  right: -30px;
  width: 60px;
}

.mover-target:hover .mover {
  transform: scale(1.05);
}

.mover {
  background-color: #fff;
  border-radius: 50%;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
  transition: transform 125ms cubic-bezier(0.07, 0.95, 0, 1);
  position: relative;
  height: 16px;
  width: 16px;
  pointer-events: none;

  @media (forced-colors) {
    background-color: ButtonText;
  }
}

.small-selection .mover {
  height: 10px;
  width: 10px;
}