webapp/src/components/content/textElement.scss

.TextElement {
    display: inline;

    .markdown-editor-error {
        background-color: rgba(210, 75, 78, 0.08);
        border: 1px solid var(--error-text);
    }

    .error-message {
        color: var(--dnd-indicator, rgba(210, 75, 78, 1));
        margin: 16px 0;
    }
}