#container {
    position: relative;
    display: block;
    width: 100%;
    height: 225px;
  }

#code, #highlighting {
    /* Both elements need the same text and space styling so they are directly on top of each other */
    margin: 0px;
    padding: 2px;
    border-width: 1px;
    border-color: -internal-light-dark(rgb(118, 118, 118), rgb(133, 133, 133));
    width: calc(100% - 6px);
    height: 100%;
}

#code, #highlighting, #highlighting * {
    /* Also add text styles to highlighting tokens */
    font-size: 14pt;
    font-family: monospace;
    line-height: 20pt;
    tab-size: 2;
}

#code, #highlighting {
    /* In the same place */
    position: absolute;
    top: 0;
    left: 0;
}

/* Move the textarea in front of the result */

#code {
    z-index: 1;    
}
#highlighting {
    z-index: 0;
}


/* Make textarea almost completely transparent */

#code {
    color: transparent;
    background: transparent;
    caret-color: white; /* Or choose your favourite color */     
}

/* Can be scrolled */
#code, #highlighting {
    overflow: auto;
    white-space: pre; /* Allows textarea to scroll horizontally */
    text-transform: uppercase;
}

/* No resize on textarea */
#code {
    resize: none;
}

/* Paragraphs; First Image */
* {
    font-family: monospace;
}
p code {
    background-color: #eee;
    color: #000;
}