strles.css

    /* Basic reset */
    * {
        margin: 0;
        padding: 0;
    }

    table {
        width: 100%;
        border-collapse: collapse;
    }

    th, td {
        vertical-align: top;
        text-align: left;
    }

    textarea {
        resize: none;
    }

    body {
        font-size: 10pt;
    }

    body, td, input, textarea {
        font-family: helvetica neue, lucida grande, sans-serif;
        line-height: 1.5;
        color: #333;
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
    }

    html {
        background: #f0f0f5;
    }

    .clearfix::after{
        clear: both;
        content: ".";
        display: block;
        height: 0;
        visibility: hidden;
    }

    /* ---------------------------------------------------------------------
     * Basic layout
     * --------------------------------------------------------------------- */

    /* Small */
    @media screen and (max-width: 1100px) {
        html {
            overflow-y: scroll;
        }

        body {
            margin: 0 20px;
        }

        header.exception {
            margin: 0 -20px;
        }

        nav.sidebar {
            padding: 0;
            margin: 20px 0;
        }

        ul.frames {
            max-height: 200px;
            overflow: auto;
        }
    }

    /* Wide */
    @media screen and (min-width: 1100px) {
        header.exception {
           position: fixed;
           top: 0;
           left: 0;
           right: 0;
        }

        nav.sidebar,
        .frame_info {
            position: fixed;
            top: 95px;
            bottom: 0;

            box-sizing: border-box;

            overflow-y: auto;
            overflow-x: hidden;
        }

        nav.sidebar {
            width: 40%;
            left: 20px;
            top: 115px;
            bottom: 20px;
        }

        .frame_info {
            right: 0;
            left: 40%;

            padding: 20px;
            padding-left: 10px;
            margin-left: 30px;
        }
    }

    nav.sidebar {
        background: #d3d3da;
        border-top: solid 3px #a33;
        border-bottom: solid 3px #a33;
        border-radius: 4px;
        box-shadow: 0 0 6px rgba(0, 0, 0, 0.2), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
    }

    /* ---------------------------------------------------------------------
     * Header
     * --------------------------------------------------------------------- */

    header.exception {
        padding: 18px 20px;

        height: 59px;
        min-height: 59px;

        overflow: hidden;

        background-color: #20202a;
        color: #aaa;
        text-shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
        font-weight: 200;
        box-shadow: inset 0 -5px 3px -3px rgba(0, 0, 0, 0.05), inset 0 -1px 0 rgba(0, 0, 0, 0.05);

        -webkit-text-smoothing: antialiased;
    }

    /* Heading */
    header.exception h2 {
        font-weight: 200;
        font-size: 11pt;
    }

    header.exception h2,
    header.exception p {
        line-height: 1.4em;
        overflow: hidden;
        white-space: pre;
        text-overflow: ellipsis;
    }

    header.exception h2 strong {
        font-weight: 700;
        color: #d55;
    }

    header.exception p {
        font-weight: 200;
        font-size: 20pt;
        color: white;
    }

    header.exception:hover {
        height: auto;
        z-index: 2;
    }

    header.exception:hover h2,
    header.exception:hover p {
        padding-right: 20px;
        overflow-y: auto;
        word-wrap: break-word;
        white-space: pre-wrap;
        height: auto;
        max-height: 7em;
    }

    @media screen and (max-width: 1100px) {
        header.exception {
            height: auto;
        }

        header.exception h2,
        header.exception p {
            padding-right: 20px;
            overflow-y: auto;
            word-wrap: break-word;
            height: auto;
            max-height: 7em;
        }
    }


    /* ---------------------------------------------------------------------
     * Navigation
     * --------------------------------------------------------------------- */

    nav.tabs {
        border-bottom: solid 1px #ddd;

        background-color: #eee;
        text-align: center;

        padding: 6px;

        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }

    nav.tabs a {
        display: inline-block;

        height: 22px;
        line-height: 22px;
        padding: 0 10px;

        text-decoration: none;
        font-size: 8pt;
        font-weight: bold;

        color: #999;
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
    }

    nav.tabs a.selected {
        color: white;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 16px;
        box-shadow: 1px 1px 0 rgba(255, 255, 255, 0.1);
        text-shadow: 0 0 4px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(0, 0, 0, 0.4);
    }

    nav.tabs a.disabled {
        text-decoration: line-through;
        text-shadow: none;
        cursor: default;
    }

    /* ---------------------------------------------------------------------
     * Sidebar
     * --------------------------------------------------------------------- */

    ul.frames {
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    }

    /* Each item */
    ul.frames li {
        background-color: #f8f8f8;
        background: -webkit-linear-gradient(top, #f8f8f8 80%, #f0f0f0);
        background: -moz-linear-gradient(top, #f8f8f8 80%, #f0f0f0);
        background: linear-gradient(top, #f8f8f8 80%, #f0f0f0);
        box-shadow: inset 0 -1px 0 #e2e2e2;
        padding: 7px 20px;

        cursor: pointer;
        overflow: hidden;
    }

    ul.frames .name,
    ul.frames .location {
        overflow: hidden;
        height: 1.5em;

        white-space: nowrap;
        word-wrap: none;
        text-overflow: ellipsis;
    }

    ul.frames .method {
        color: #966;
    }

    ul.frames .location {
        font-size: 0.85em;
        font-weight: 400;
        color: #999;
    }

    ul.frames .line {
        font-weight: bold;
    }

    /* Selected frame */
    ul.frames li.selected {
        background: #38a;
        box-shadow: inset 0 1px 0 rgba(0, 0, 0, 0.1), inset 0 2px 0 rgba(255, 255, 255, 0.01), inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    }

    ul.frames li.selected .name,
    ul.frames li.selected .method,
    ul.frames li.selected .location {
        color: white;
        text-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
    }

    ul.frames li.selected .location {
        opacity: 0.6;
    }

    /* Iconography */
    ul.frames li {
        padding-left: 60px;
        position: relative;
    }

    ul.frames li .icon {
        display: block;
        width: 20px;
        height: 20px;
        line-height: 20px;
        border-radius: 15px;

        text-align: center;

        background: white;
        border: solid 2px #ccc;

        font-size: 9pt;
        font-weight: 200;
        font-style: normal;

        position: absolute;
        top: 14px;
        left: 20px;
    }

    ul.frames .icon.application {
        background: #808090;
        border-color: #555;
    }

    ul.frames .icon.application:before {
        content: 'A';
        color: white;
        text-shadow: 0 0 3px rgba(0, 0, 0, 0.2);
    }

    /* Responsiveness -- flow to single-line mode */
    @media screen and (max-width: 1100px) {
        ul.frames li {
            padding-top: 6px;
            padding-bottom: 6px;
            padding-left: 36px;
            line-height: 1.3;
        }

        ul.frames li .icon {
            width: 11px;
            height: 11px;
            line-height: 11px;

            top: 7px;
            left: 10px;
            font-size: 5pt;
        }

        ul.frames .name,
        ul.frames .location {
            display: inline-block;
            line-height: 1.3;
            height: 1.3em;
        }

        ul.frames .name {
            margin-right: 10px;
        }
    }

    /* ---------------------------------------------------------------------
     * Monospace
     * --------------------------------------------------------------------- */

    pre, code, .repl input, .repl .prompt span, textarea, .code_linenums {
        font-family: menlo, lucida console, monospace;
        font-size: 8pt;
    }

    /* ---------------------------------------------------------------------
     * Display area
     * --------------------------------------------------------------------- */

    .trace_info {
        background: #fff;
        padding: 6px;
        border-radius: 3px;
        margin-bottom: 2px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.03), 1px 1px 0 rgba(0, 0, 0, 0.05), -1px 1px 0 rgba(0, 0, 0, 0.05), 0 0 0 4px rgba(0, 0, 0, 0.04);
    }

    .code_block{
        background: #f1f1f1;
        border-left: 1px solid #ccc;
    }

    /* Titlebar */
    .trace_info .title {
        background: #f1f1f1;

        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
        overflow: hidden;
        padding: 6px 10px;

        border: solid 1px #ccc;
        border-bottom: 0;

        border-top-left-radius: 2px;
        border-top-right-radius: 2px;
    }

    .trace_info .title .name,
    .trace_info .title .location {
        font-size: 9pt;
        line-height: 26px;
        height: 26px;
        overflow: hidden;
    }

    .trace_info .title .location {
        float: left;
        font-weight: bold;
        font-size: 10pt;
    }

    .trace_info .title .location a {
        color:inherit;
        text-decoration:none;
        border-bottom:1px solid #aaaaaa;
    }

    .trace_info .title .location a:hover {
        border-color:#666666;
    }

    .trace_info .title .name {
        float: right;
        font-weight: 200;
    }

    .code, .console, .unavailable {
        background: #fff;
        padding: 5px;

        box-shadow: inset 3px 3px 3px rgba(0, 0, 0, 0.1), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
    }

    .code_linenums{
        background:#f1f1f1;
        padding-top:10px;
        padding-bottom:9px;
        float:left;
    }

    .code_linenums span{
        display:block;
        padding:0 12px;
    }

    .code {
        margin-bottom: -1px;
        border-top-left-radius:2px;
        padding: 10px 0;
        overflow: auto;
    }

    .code pre{
        padding-left:12px;
        min-height:16px;
    }

    /* Source unavailable */
    p.unavailable {
        padding: 20px 0 40px 0;
        text-align: center;
        color: #b99;
        font-weight: bold;
    }

    p.unavailable:before {
        content: '\00d7';
        display: block;

        color: #daa;

        text-align: center;
        font-size: 40pt;
        font-weight: normal;
        margin-bottom: -10px;
    }

    @-webkit-keyframes highlight {
        0%   { background: rgba(220, 30, 30, 0.3); }
        100% { background: rgba(220, 30, 30, 0.1); }
    }
    @-moz-keyframes highlight {
        0%   { background: rgba(220, 30, 30, 0.3); }
        100% { background: rgba(220, 30, 30, 0.1); }
    }
    @keyframes highlight {
        0%   { background: rgba(220, 30, 30, 0.3); }
        100% { background: rgba(220, 30, 30, 0.1); }
    }

    .code .highlight, .code_linenums .highlight {
        background: rgba(220, 30, 30, 0.1);
        -webkit-animation: highlight 400ms linear 1;
        -moz-animation: highlight 400ms linear 1;
        animation: highlight 400ms linear 1;
    }

    /* REPL shell */
    .console {
        padding: 0 1px 10px 1px;
        border-bottom-left-radius: 2px;
        border-bottom-right-radius: 2px;
    }

    .console pre {
        padding: 10px 10px 0 10px;
        max-height: 400px;
        overflow-x: none;
        overflow-y: auto;
        margin-bottom: -3px;
        word-wrap: break-word;
        white-space: pre-wrap;
    }

    /* .prompt > span + input */
    .console .prompt {
        display: table;
        width: 100%;
    }

    .console .prompt span,
    .console .prompt input {
        display: table-cell;
    }

    .console .prompt span {
        width: 1%;
        padding-right: 5px;
        padding-left: 10px;
    }

    .console .prompt input {
        width: 99%;
    }

    /* Input box */
    .console input,
    .console input:focus {
        outline: 0;
        border: 0;
        padding: 0;
        background: transparent;
        margin: 0;
    }

    /* Hint text */
    .hint {
        margin: 15px 0 20px 0;
        font-size: 8pt;
        color: #8080a0;
        padding-left: 20px;
    }

    .hint:before {
        content: '\25b2';
        margin-right: 5px;
        opacity: 0.5;
    }

    /* ---------------------------------------------------------------------
     * Variable infos
     * --------------------------------------------------------------------- */

    .sub {
        padding: 10px 0;
        margin: 10px 0;
    }

    .sub:before {
        content: '';
        display: block;
        width: 100%;
        height: 4px;

        border-radius: 2px;
        background: rgba(0, 150, 200, 0.05);
        box-shadow: 1px 1px 0 rgba(255, 255, 255, 0.7), inset 0 0 0 1px rgba(0, 0, 0, 0.04), inset 2px 2px 2px rgba(0, 0, 0, 0.07);
    }

    .sub h3 {
        color: #39a;
        font-size: 1.1em;
        margin: 10px 0;
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);

        -webkit-font-smoothing: antialiased;
    }

    .sub .inset {
        overflow-y: auto;
    }

    .sub table {
        table-layout: fixed;
    }

    .sub table td {
        border-top: dotted 1px #ddd;
        padding: 7px 1px;
    }

    .sub table td.name {
        width: 150px;

        font-weight: bold;
        font-size: 0.8em;
        padding-right: 20px;

        word-wrap: break-word;
    }

    .sub table td pre {
        max-height: 15em;
        overflow-y: auto;
    }

    .sub table td pre {
        width: 100%;

        word-wrap: break-word;
        white-space: normal;
    }

    /* "(object doesn't support inspect)" */
    .sub .unsupported {
      font-family: sans-serif;
      color: #777;
    }

    /* ---------------------------------------------------------------------
     * Scrollbar
     * --------------------------------------------------------------------- */

    nav.sidebar::-webkit-scrollbar,
    .inset pre::-webkit-scrollbar,
    .console pre::-webkit-scrollbar,
    .code::-webkit-scrollbar {
        width: 10px;
        height: 10px;
    }

    .inset pre::-webkit-scrollbar-thumb,
    .console pre::-webkit-scrollbar-thumb,
    .code::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 5px;
    }

    nav.sidebar::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.0);
        border-radius: 5px;
    }

    nav.sidebar:hover::-webkit-scrollbar-thumb {
        background-color: #999;
        background: -webkit-linear-gradient(left, #aaa, #999);
    }

    .console pre:hover::-webkit-scrollbar-thumb,
    .inset pre:hover::-webkit-scrollbar-thumb,
    .code:hover::-webkit-scrollbar-thumb {
        background: #888;
    }