firefox/toolkit/components/printing/content/print.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/. */

:root {
  font: menu;
}

:root,
body {
  height: 100vh;
}

body {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;
}

*[hidden] {
  display: none !important;
}

.section-block {
  margin: var(--space-large);

  .block-label {
    display: block;
    margin-bottom: var(--space-small);
  }
}

.row {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 1.8em;
  margin-block: var(--space-xxsmall);

  &.cols-2 {
    flex-direction: row;
    align-items: center;

    #scale &,
    #more-settings-options > & {
      /* The margin-block of the checkboxes/radiobuttons
         already provide the needed vertical spacing. */
      margin-block: 0;
    }
  }
}

hr {
  margin: 0 var(--space-small);
}

.header-container {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  flex: 0 1 auto;
  padding: var(--space-small) var(--space-large);

  > h2 {
    margin: 0;
    line-height: 1;
  }
}

#sheet-count {
  font: message-box;
  padding-block: var(--space-xsmall);
  margin: 0;

  &[loading],
  body[invalid] & {
    visibility: hidden;
  }
}

#print {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;

  body[loading] & {
    visibility: hidden;
  }
}

.body-container {
  flex: 1 1 auto;
  overflow: auto;
}

select {
  margin: 0;
  width: 100%;

  &:not([size], [multiple])[iconic] {
    padding-inline-start: calc(8px + 16px + 4px); /* spacing before image + image width + spacing after image */
    background-size: auto 12px, 16px;
    background-position: right 19px center, left 8px center;

    &:dir(rtl) {
      background-position-x: left 19px, right 8px;
    }
  }
}

#printer-picker {
  background-image: url("chrome://global/skin/icons/arrow-down-12.svg"), url("chrome://global/skin/icons/print.svg");

  &[output="pdf"] {
    background-image: url("chrome://global/skin/icons/arrow-down-12.svg"), url("chrome://global/skin/icons/page-portrait.svg");
  }
}

input:is([type="number"], [type="text"]) {
  padding: var(--space-xxsmall);
  padding-inline-start: var(--space-small);
}

input[type="number"] {
  box-sizing: content-box;
  min-height: unset;
  padding: 0;
  padding-inline-start: var(--space-small);
  margin: 0;
  height: 1.5em;
  width: 4em;
}

input:is([type="checkbox"], [type="radio"]):disabled + label,
input[type="radio"]:disabled + span > label {
  opacity: 0.5;
}

#custom-range {
  margin: 0;
  margin-top: var(--space-xsmall);
  width: 100%;
}

#percent-scale {
  margin-inline-start: var(--space-xsmall);

  &:disabled {
    /* Let clicks on the disabled input select the radio button */
    pointer-events: none;
  }
}

.toggle-group-label {
  padding: var(--space-xsmall) var(--space-small);

  #landscape + &::before {
    content: url("chrome://global/skin/icons/page-landscape.svg");
  }

  #portrait + &::before {
    content: url("chrome://global/skin/icons/page-portrait.svg");
  }
}

#more-settings {
  > summary {
    list-style: none;
    display: flex;
    cursor: pointer;
    align-items: center;

    > .twisty {
      background-image: url("chrome://global/skin/icons/arrow-down-12.svg");
      background-repeat: no-repeat;
      background-position: center;
      -moz-context-properties: fill;
      fill: currentColor;
      width: 12px;
      height: 12px;
    }

    > .label {
      flex-grow: 1;
    }
  }

  &[open] > summary > .twisty {
    background-image: url("chrome://global/skin/icons/arrow-up-12.svg");
  }
}

.vertical-margins,
.horizontal-margins {
  display: flex;
  gap: var(--space-large);
  margin-block: var(--space-xsmall);

  > .margin-pair {
    width: calc(50% - (2 * var(--space-xsmall))); /* Half minus the gap */

    > .margin-descriptor {
      display: block;
      text-align: center;
      margin-top: var(--space-xxsmall);
    }

    > .margin-input {
      width: 100%;
      box-sizing: border-box;
    }
  }
}

.horizontal-margins:dir(rtl) {
  /* Swap between the left and right margin inputs to match their position
   * in the form to their physical location they represent. */
  flex-direction: row-reverse;
}

#open-dialog-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xsmall);

  &::after {
    display: block;
    flex-shrink: 0;
    content: "";
    background: url(chrome://global/skin/icons/open-in-new.svg) no-repeat center;
    background-size: 12px;
    -moz-context-properties: fill;
    fill: currentColor;
    width: 12px;
    height: 12px;
  }

  &:dir(rtl)::after {
    transform: scaleX(-1);
  }
}

.footer-container {
  flex: 0 1 auto;
}

#print-progress {
  background-image: url("chrome://global/skin/icons/loading.svg");
  background-repeat: no-repeat;
  background-size: var(--size-item-small);
  background-position: left center;
  -moz-context-properties: fill;
  fill: var(--color-accent-primary);
  padding-inline-start: calc(var(--size-item-small) + var(--space-xsmall));

  &:dir(rtl) {
    background-position-x: right;
  }
}

.error-message {
  color: var(--text-color-error);
  margin-top: var(--space-xsmall);
}