| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| #indicator { |
| position: absolute; |
| top: 20px; |
| left: 20px; |
| width: 200px; |
| height: 200px; |
| background-color: red; |
| } |
| |
| .container { |
| position: absolute; |
| top: 20px; |
| left: 20px; |
| } |
| |
| .solid-background { |
| position: relative; |
| float: left; |
| width: 200px; |
| height: 200px; |
| background-color: green; |
| z-index: 0; |
| } |
| |
| #scrollable { |
| width: 100%; |
| height: 100%; |
| overflow: hidden; |
| } |
| |
| .opaque { |
| background-color: gray; |
| width: 100%; |
| height: 100%; |
| } |
| |
| .non-opaque { |
| background-color: transparent; |
| width: 100%; |
| height: 100%; |
| } |
| </style> |
| <script> |
| window.addEventListener('load', function() { |
| document.getElementById('scrollable').scrollTop = 200; |
| }, false); |
| </script> |
| </head> |
| <body> |
| |
| <div id="indicator"></div> |
| |
| <div class="container"> |
| <div class="solid-background"> |
| <div id="scrollable"> |
| <div class="opaque"> |
| </div> |
| <div class="non-opaque"> |
| </div> |
| </div> |
| </div> |
| </div> |
| |
| </body> |
| </html> |
