jquery uses the offset() method to obtain the xy coordinates of the element_jquery

To get the absolute X, Y coordinates of an element on the page, you can use the offset() method: (body attribute setting margin: 0; padding: 0;)

var X = $('#DivID').offset().top; 
var Y = $('#DivID').offset().left; 
获取相对(父元素)位置: 
var X = $('#DivID').position().top; 
var Y = $('#DivID').position().left;