<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> .father { width: 400px; height: 400px; background-color: pink; position: relative; margin: 100px; } .son { width: 200px; height: 200px; background-color: cyan; position: absolute; left: 100px; top: 100px; } </style> </head> <body> <div class="father"> <div class="son"></div> </div> <script src="jquery-3.2.1.js"></script> <script> $(function () { // 获取元素相对于document的位置 console.log($(".son").offset()); // 获取元素相对于有定位的父元素的位置 console.log($(".son").position()); }); </script> </body> </html>