Create “print” design from your browser for thermal printer. (Pantoufle basic structure.)

fiddle.css

/* =Pantoufle Thermal printer
 * v0.1
 * ---------------------------------------------------------------------------*/

body {
  margin: 0;
  width: 48mm;
}

*, *::after, *::before {
  box-sizing: border-box;
}

img {
  display: block;
  height: auto;
  width:  48mm;
}

.page {
  padding-bottom: 5mm;
}

/*
 * Screen
 */
@media screen {

  html {
    background-color: Gainsboro;
  }
  body {
    background-color: white;
    box-shadow: 2px 2px 0px 1px #000, 0px 0px 0px 1px #000;
    margin: 3em;
    width: 57mm;
    padding: 5mm 4.5mm 1pt 4.5mm;
    position: relative;
  }
  body::before {
    content: "";
    position: absolute;
    z-index: 1;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-top: 5mm solid white;
    border-right: 4.5mm solid white;
    border-left:  4.5mm solid white;
    pointer-events: none;
  }

}

/*
 * Print
 */
@media print {

  @page
  {
    margin: 0;
  }

  html,
  body {
    background-color: transparent;
  }

  body {
    padding: 1pt 0pt;
  }

  .page::before {
    content: "--";
    font-size: 6pt;
    line-height: 1pt;
    display: block;
    text-align: left;
    position: absolute;
    top: 0;
    left: 0;
  }

  body::after {
    display: block;
    content: "--";
    font-size: 6pt;
    line-height: 1pt;
    text-align: left;
  }

}

/* =Theme
 * Start your theme here
 * ---------------------------------------------------------------------------*/

fiddle.html

<div class="page">

  <!-- Content -->

</div>

fiddle.manifest

name: Pantoufle basic structure for thermal printer
description: Create “print” design from your browser.
authors:
  - Julien Gargot
resources:
  - https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js
normalize_css: no