height
Optional. Sets the height of the control group
height?: string | number | "content";
Default value: "content"
Example
const form = new dhx.Form("form_container", {
    css: "dhx_widget--bordered",
    height: "300px", // sets a common height for rows 
    padding: "20px",   
    rows: [
        {
            type: "text",
            name: "text",
            value: "Do you agree with our terms and conditions?"
        },
        {
            padding: "10px",
            height: "200px", // sets a common height for cols
            cols: [{
                type: "checkbox",
                width: "80px", 
                label: "I agree",
                name: "agree",
                id: "agree",
                checked: true
            },
            {
                type: "checkbox",
                label: "I disagree",
                name: "align",
            }]
        }
    ]
});
Change log:
added in v6.4