<div id="outer">
  <div id="inner">내용</div>
</div>
* {
    margin: 0;
    padding: 0;
}

#outer {
    width: 500px;
    height: 500px;
    margin: 50px;
    position: relative;
    background: #ff6600;
 }

#inner {
    width: 100px;
    height: 100px;
    position: absolute;
    left: 80px;
    top: 50px;
    background: #ccc;
}
$(document).ready(function() {
            console.log($("#inner").offset().left);
            console.log($("#inner").offset().top);
            console.log($("#inner").position().left);
            console.log($("#inner").position().top);
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js