    @import url('https://fonts.googleapis.com/css?family=Inconsolata');

    @font-face {
      font-family: 'HP15CWebFont';
      src: local('HP15C Simulator Font'),
           url('../fonts/HP-15C_Simulator_Font.ttf');
    }

    .HP15CTblLayout {
      empty-cells: show;
      border-collapse: collapse;
      margin-left: 20px;
      margin-top: 0.5em;
      margin-bottom: 1em;
      border: none;
    }

    .HP15CTblHead {
      font-family: Helvetica, Arial, sans-serif;
      text-align: left;
      vertical-align: middle;
      white-space:nowrap;
      color: #000000;
      background-color: #C0C0C0;
      padding: 0.2em;
      padding-left: 0.5em;
      padding-right: 0.5em;
      border-color: black;
      border-width: 1px;
      border-style: solid;
    }

    .HP15CTblHeadEmpty {
      padding-left: 0.5em;
      border: none;
    }

    .HP15CTblLeft {
      font-family: Helvetica, Arial, sans-serif;
      font-weight: normal;
      text-align: left;
      vertical-align: middle;
      padding-left: 5px;
      padding-right: 5px;
      border-color: black;
      border-width: 1px;
      border-style: solid;
    }

    .HP15CTblCentered {
      font-family: Helvetica, Arial, sans-serif;
      text-align: center;
      vertical-align: middle;
      border-color: black;
      border-width: 1px;
      border-style: solid;
    }

    .HP15CTblRight {
      font-family: Helvetica, Arial, sans-serif;
      font-weight: normal;
      text-align: right;
      vertical-align: middle;
      padding-left: 5px;
      padding-right: 5px;
      border-color: black;
      border-width: 1px;
      border-style: solid;
    }

    .HP15CTblRightCode {
      font-family: HP15CWebFont, Inconsolata, Courier, monospace;
      font-weight: normal;
      font-size: 1.25em;
      text-align: right;
      vertical-align: middle;
      padding-left: 5px;
      padding-right: 5px;
      border-color: black;
      border-width: 1px;
      border-style: solid;
    }

    .HP15CRegister {
      font-family: Times, serif;
      font-size:  0.9em;
      font-weight: bold;
    }

    .HP15CKey {
      font-family: Helvetica, Arial, sans-serif;
      font-weight: bold;
      font-size:  0.9em;
      font-style: normal;
      text-decoration: none;
      color: white;
      background-color: #454545;
      padding-left: 4px;
      padding-right: 4px;
      border-radius: 4px;
    }

    .HP15CBWKey {
      font-family: Helvetica, Arial, sans-serif;
      font-weight: bold;
      font-size:  0.9em;
      font-style: normal;
      text-decoration: none;
      padding-left: 4px;
      padding-right: 4px;
      border-style: solid;
      border-radius: 4px;
      border-color: black;
      border-width: 1px;
    }

    .HP15CfKeyLabel {
      font-family: Helvetica, Arial, sans-serif;
      font-weight: bold;
      font-size:  0.9em;
      color: #E1A83E;
      background-color: #454545;
      padding-left: 4px;
      padding-right: 4px;
      border-radius: 4px;
    }

    .HP15CgKeyLabel {
      font-family: Helvetica, Arial, sans-serif;
      font-weight: bold;
      font-size:  0.9em;
      color: #6CB7BD;
      background-color: #454545;
      padding-left: 4px;
      padding-right: 4px;
      border-radius: 4px;
    }

    .HP15CfKey {
      font-family: Helvetica, Arial, sans-serif;
      font-weight:  bold;
      font-size:  0.9em;
      color:  black;
      text-align:  center;
      background-color:  #E1A83E;
      padding-left:  6px;
      padding-right:  6px;
      border-radius: 4px;
    }

    .HP15CgKey {
      font-family: Helvetica, Arial, sans-serif;
      font-weight:  bold;
      font-size:  0.9em;
      color:  black;
      text-align:  center;
      background-color:  #6CB7BD;
      padding-left:  6px;
      padding-right:  6px;
      border-radius: 4px;
    }
