| <!DOCTYPE html> |
| <style> |
| |
| #scroller { |
| overflow-y: auto; |
| height: 200px; |
| border: 2px solid green; |
| position: relative; |
| background: gray; |
| } |
| |
| .spacer { |
| height: 1000px; |
| } |
| |
| #align { |
| box-sizing: border-box; |
| width: 100%; |
| height: 50px; |
| background: rgba(0, 0, 200, 0.2); |
| color: white; |
| position: absolute; |
| border: 1px solid white; |
| transform: translateY(200px); |
| will-change: transform; |
| } |
| |
| #marker { |
| width: 100%; |
| height: 50px; |
| background: #640; |
| position: absolute; |
| top: 350px; |
| } |
| |
| </style> |
| <div id="scroller"> |
| <div id="align">TOP</div> |
| <div class="spacer"></div> |
| <div id="marker">BOTTOM</div> |
| </div> |
| <script> |
| scroller.scrollTo(0, 200); |
| </script> |
