css - 关于offsetLeft和offsetTop
offsetLeft不是当前元素的左外边框到包含元素的左内边框之间的像素距离吗？
为什么多出了8px
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>test2</title>
<style media="screen">
.cc{
padding: 50px 30px;
}
.fc{
background-color: blue;
width:300px;
height: 200px;
}
</style>
</head>
<body>
<p class="cc">
<p class="fc" >
</p>
</p>
</body>
<script type="text/javascript">
var fc = document.querySelector('.fc');
console.log(fc.offsetLeft+':'+fc.offsetTop);
</script>
</html>
