{
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "version": "1.1",
    "type": "AdaptiveCard",
    "body": [
        {
            "type": "ColumnSet",
            "spacing": "None"
        },
        {
            "type": "ColumnSet",
            "spacing": "Default",
            "columns": [
                {
                    "type": "Column",
                    "width": "6px"
                },
                {
                    "type": "Column",
                    "items": [
                        {
                            "type": "TextBlock",
                            "text": "${previewHeadingText}",
                            "wrap": true,
                            "customStyle": "previewHeading"
                        }
                    ]
                },
                {
                    "type": "Column",
                    "width": "6px"
                }
            ]
        },
        {
            "type": "ColumnSet",
            "spacing": "Default"
        },
        {
            "type": "ColumnSet",
            "spacing": "None",
            "separator": true
        },
        {
            "type": "ColumnSet",
            "spacing": "Default",
            "columns": [
                {
                    "type": "Column",
                    "width": "6px"
                },
                {
                    "type": "Column",
                    "items": [
                        {
                            "type": "TextBlock",
                            "text": "${previewTitleText}",
                            "wrap": true,
                            "maxLines": 2,
                            "customStyle": "previewHeading"
                        }
                    ]
                },
                {
                    "type": "Column",
                    "width": "6px"
                }
            ]
        },
        {
            "type": "ColumnSet",
            "spacing": "Small",
            "columns": [
                {
                    "type": "Column",
                    "width": "6px"
                },
                {
                    "type": "Column",
                    "items": [
                        {
                            "type": "TextBlock",
                            "text": "${previewBodyText}",
                            "wrap": true,
                            "maxLines": 8,
                            "customStyle": "previewBody"
                        }
                    ]
                },
                {
                    "type": "Column",
                    "width": "6px"
                }
            ]
        },
        {
            "type": "ColumnSet",
            "spacing": "Default"
        },
        {
            "type": "ColumnSet",
            "spacing": "Small"
        }
    ]
}