| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| body { |
| margin: 0; |
| } |
| .container { |
| width: 200px; |
| height: 400px; |
| outline: 2px solid black; |
| } |
| |
| .box { |
| width: 200px; |
| height: 200px; |
| } |
| |
| .sticky { |
| position: sticky; |
| } |
| |
| .intermediate { |
| position: absolute; |
| z-index: 1; |
| background-color: green |
| } |
| |
| .child { |
| position: relative; |
| background-color: red; |
| z-index: 2; |
| } |
| |
| .indicator { |
| position: absolute; |
| top: 0; |
| left: 0; |
| background-color: blue; |
| z-index: 0; |
| } |
| </style> |
| </head> |
| <body> |
| <div class="indicator box"></div> |
| <div class="container"> |
| <div class="intermediate box"></div> |
| <div class="sticky box"> |
| <div class="child box"></div> |
| </div> |
| </div> |
| </body> |
| </html> |
