| <html> |
| <head> |
| <style> |
| .grid { |
| display: grid; |
| grid-template-columns: [start] 1fr 1fr [end]; |
| border: 1px solid blue; |
| } |
| |
| .subgrid { |
| display: grid; |
| grid-template-columns: subgrid; |
| grid-column: start / end; |
| padding-inline: 10px; |
| padding-block: 10px; |
| border: 1px solid black; |
| } |
| </style> |
| <script src="../resources/runner.js"></script> |
| <script> |
| function startTest() { |
| document.body.offsetHeight; |
| |
| var index = 0; |
| PerfTestRunner.measureRunsPerSecond({run: function() { |
| document.body.style.width = ++index % 2 ? "99%" : "98%"; |
| document.body.offsetHeight; |
| }}); |
| } |
| </script> |
| </head> |
| <body onload="startTest()"> |
| <div class="grid"> |
| <div class="subgrid"> |
| <div class="grid"> |
| <div class="subgrid"> |
| <div class="subgrid"> |
| <div class="grid"> |
| <div class="subgrid"> |
| <div class="subgrid"> |
| <div class="grid"> |
| <div class="subgrid"> |
| <div class="grid"> |
| <div class="subgrid"> |
| <div class="subgrid"> |
| <div class="grid"> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </body> |
| </html> |
