css/background.css
body {
    font-family: "Helvetica Neue", "Helvetica", Arial, sans-serif;
    font-size: 11pt;
    height: 100%;
    margin-top: 0;
    color: rgb(var(--now-color_text--primary, 0, 0, 0)); /* Fallback to black */
    background-color: rgb(var(--now-color_background--secondary, 255, 255, 255)); /* Fallback to white */

    a:link {
        color: rgb(var(--now-button--bare_primary--color, 0, 0, 238)); /* Fallback to standard link blue */
    }
    a:visited{
        color: rgb(var(--now-button--bare_primary--color, 85, 26, 139)); /* Fallback to standard visited link purple */
    }
}

#container {
    min-height: 70vh; 
    border: 1pt solid rgb(var(--now-form-field--border-color, 192, 192, 192)); /* Fallback to light gray */
}

.container {
    display: flex;
    flex: 1;
    align-items: flex-start;
    width: 100vw;
    min-height: 100vh;
}

.container__left {
    padding: 10px;
    min-height: 100vh;
    width: 65%;
}

.resizer {
    background-color: rgb(var(--now-form-field--border-color, 192, 192, 192)); /* Fallback to light gray */
    cursor: ew-resize;
    height: 100vh;
    width: 2px;
}

.container__right {
    padding: 10px;
    height: 100vh;
    width: 35%;
}

.result {
    word-wrap: break-word;
}

hr {
    border: 0;
    height: 1px;
    background: rgb(var(--now-form-field--border-color, 192, 192, 192)); /* Fallback to light gray */
    margin-block-start: 4px;
    margin-block-end: 4px;
    background-image: linear-gradient(to right, #e5e5e5, #ccc, #e5e5e5);
}

pre {
    white-space: pre-wrap;
}

label {
    font-size: 9pt;
}

/* modern additions */
h4, .result_header {
    height: 20px;
    margin-block-start: 0;
    margin-block-end: 0;
}

#actionResult {
    font-size: 8pt;
}

#resultbar {
    background-color: rgb(var(--now-color_background--primary, 240, 240, 240)); /* Fallback to light gray */
    border: 1px solid rgb(var(--now-form-field--border-color, 192, 192, 192)); /* Fallback to light gray */
    padding: 5px;
    margin: 5px 0;
    border-radius: 5px;
    font-size: 8pt;
    display: flex;
    align-items: center;
    > * {
        padding: 0 5px;
    }
}

#resultbar a {
    text-decoration: none;
}


#div_script:not(.code-editor) {
    height: calc(100vh - 300px) !important;
}