| <!doctype HTML> | |
| <style> | |
| #frame { | |
| width: 200px; | |
| height: 200px; | |
| overflow-y: scroll; | |
| } | |
| #parent { | |
| width: 100px; | |
| height: 500px; | |
| background-color: lightblue; | |
| } | |
| #child { | |
| width: 50px; | |
| height: 50px; | |
| background-color: blue; | |
| will-change: transform; | |
| } | |
| </style> | |
| <div id="frame"> | |
| <div id="parent"> | |
| <div id="child"></div> | |
| </div> | |
| </div> | |