如何在JavaScript中创建一个对象，动态创建div（具有样式属性和id）并附加到我的html页面？

I'm trying to create an object in javascript that will dynamically create a line with style properties, and attach it to my page. I've seen other solutions that just create an element, but none that can be nicely fit into a single object.I'm trying to create an object in javascript th