* {
    margin: 0px 0px 0px 0px;
    padding: 0px 0px 0px 0px;
  }

  @media (prefers-color-scheme: dark) {
    :root
    {
      --background-color: black;
      --font-color: white;
    }
    .page_header {
      --background-color: #5A5A5A;
    }
    .main_page {
      --background-color: black;
    }
  }
  @media (prefers-color-scheme: light) {
    :root
    {
      --background-color: #D8DBE2;
      --font-color: black;
    }
    .page_header {
      --background-color: #F5F6F7;
    }
    .main_page {
      --background-color: #D8DBE2;
    }
  }

  body, html {
    padding: 3px 3px 3px 3px;

    background-color: var(--background-color, #FFFFFF);
    color: var(--font-color, #000000);

    font-family: Verdana, sans-serif;
    font-size: 11pt;
    text-align: center;
  }

  div.main_page {
    position: relative;
    display: table;

    width: 800px;

    margin-bottom: 3px;
    margin-left: auto;
    margin-right: auto;
    padding: 0px 0px 0px 0px;

    border-width: 2px;
    border-color: #212738;
    border-style: solid;

    text-align: center;
  }

  div.page_header {
    height: 99px;
    width: 100%;

    background-color: var(--background-color, #F5F6F7);
  }

  div.page_header span {
    margin: 15px 0px 0px 50px;

    font-size: 180%;
    font-weight: bold;
  }

  div.page_header img {
    margin: 3px 0px 0px 40px;

    border: 0px 0px 0px;
  }

  .floating_element {
    position: relative;
    float: left;
  }