<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> </head> <body> <div class="box1" style="position: absolute;"> <div class="box2" style="position: fixed;"> <div class="box3"></div> </div> </div> <script> //offsetParent:复习盒子中带有定位的盒子 //复习盒子中都没有定位,返回body //如果有,谁有返回最近哪个 var box3 = document.getElementsByClassName("box3")[0]; console.log(box3.offsetParent); </script> </body> </html>
时间: 2024-10-13 05:40:41