Indicates if the form should set the height of the box where it is rendered based on the form's content. If set to false, the form's box must have a height set. $('#form').height(300); let form = new w2form({ name : 'form', focus : 2, autosize: false, fields : [ { field: 'first_name', type: 'text' }, { field: 'last_name', type: 'text' }, { field: 'field_textarea', type: 'text' } ], actions : { "reset": function () { this.clear(); }, "save": function () { this.save(); } } });