@browser.style/print-preview/index.css

Print preview component with page layout controls and templates support

@media screen {
  :host {
    --_gap: 2rem;
    background-color: #999;
    border: 0;
    height: 100dvh;
    inset: 0;
    padding: 0;
    width: 100vw;
  }
  paper-sheet,
  ::slotted(paper-sheet) {
    aspect-ratio: calc(1 / var(--page-ratio));
    background-color: #FFF;
    box-shadow: 0 0 10px rgba(0,0,0,.1);
    box-sizing: border-box; 
    color: #000;
    display: block;
    font-size: var(--page-root-size, 1rem);
    font-family: var(--page-font, inherit);
    margin-block-end: var(--_gap);
    margin-inline: auto;
    padding: var(--page-margin-top) var(--page-margin-right) var(--page-margin-bottom) var(--page-margin-left);
    max-width: var(--page-width, auto);
    width: 100%;
  }
  paper-tray {
    box-sizing: border-box; 
    display: block;
    padding-block-end: var(--_gap);
    padding-inline: var(--_gap);
  }

  :host > form {
    align-items: center;
    background-color: #121212;
    color: #E1E1E1;
    color-scheme: light dark;
    display: flex;
    flex-wrap: wrap;
    font-family: system-ui;
    font-size: 14px;
    gap: 1ch;
    margin-block-end: var(--_gap);
    padding: 1ch;
    position: sticky;
    top: 0;

    button {
      background: #262626;
      border: 0;
      border-radius: 4px;
      color: inherit;
      display: grid;
      font-size: inherit;
      padding: 0;
      place-content: center;
      &[data-action="close"] {
        margin-inline-start: auto;
      }
      svg {
        scale: 1.25;
      }
    }

    fieldset {
      all: unset;
      label { border: 0; }
    }

    fieldset, label {
      align-items: center;
      background: #262626;
      border-radius: 4px;
      display: flex;
      padding-inline: .5ch;
    }

    input, select {
      appearance: none;
      background: #0000;
      border: 0;
      border-radius: inherit;
      color: inherit;
      font-family: inherit;
      font-size: inherit;
    }

    input[type=number] { -moz-appearance:textfield; }
    input::-webkit-inner-spin-button,
    input::-webkit-outer-spin-button {
      appearance: none;
    }

    svg {
      fill: none;
      height: 1.5em;
      padding: 0.125em;
      pointer-events: none;
      stroke: currentColor;
      stroke-width: 1.25;
      width: 1.5em;
    }
    /* focus */
    button:focus-visible, label:focus-within {
      &, input, select { outline: none; }
      background: #304850;
    }
  }
}

@media print {
  :host([mode="hidden"]) {
    display: none !important;
  }
  :host {
    border: 0;
    margin: 0;
    max-width: none;
    padding: 0;
    width: 100%;

    form { 
      display: none; 
    }
  }
  :host, paper-tray {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
    position: static !important;
  }
  paper-sheet,
  ::slotted(paper-sheet) {
    background: #0000;
    box-shadow: none;
    break-after: page;
    color: #000;
    display: block !important;
    font-size: var(--page-root-size, 1rem);
    font-family: var(--page-font, inherit);
    margin: 0;
    overflow: visible !important;
    page: sheet;
    page-break-after: always;
    position: relative;
  }
  paper-sheet:last-child,
  ::slotted(paper-sheet:last-child) {
    break-after: avoid;
  }
}