.viewport-error {
    padding: 10px;
    h1 {}
    .message {
        font-weight: bold;
        font-size: 12pt;
    }
    .source {
        font-family: monospace;
        margin: 10px 0;
    }
    .detail {
        &:empty {
            display: none;
        }
        white-space: pre;
        border: 1px solid #ccc;
        background-color: #eee;
        margin: 10px 0;
        font-family: monospace;
        padding: 10px;
        font-size: 12pt;
    }
}