html
    {
      box-sizing: border-box;
      overflow: -moz-scrollbars-vertical;
      overflow-y: scroll;
    }
    *,
    *:before,
    *:after
    {
      box-sizing: inherit;
    }

    .topbar {
        visibility: hidden;
    }

    body {
      margin:0;
      background: #fafafa;
    }

    pre {
        background: none;
        padding: 0;
        top: 0;
        display: block;
        color: rgba(49,52,57,.85);
        white-space: pre-wrap;
    }


/*small {*/
/*    visibility: hidden;*/
/*}*/