BootStrap set the ranks of style

1. The cell is provided css style

 {title: '插入日期', field: 'insertDate', visible: true, align: 'center', valign: 'middle',
                cellStyle:{
                    css: {"overflow": "hidden", "text-overflow": "ellipsis", "white-space": "nowrap"}
                }
            }

The contents of the cell is provided css style

{title: '插入日期', field: 'insertDate', visible: true, align: 'center', valign: 'middle',
               cellStyle:function(value,row,index){
	if (value==1){
		return {css:{"background-color":"red"}}
	}else{
		return {css:{"background-color":"green"}}
	}
}
            }