| <!DOCTYPE html> | |
| <body style="width: 100vw; height: 100vh; margin: 0; padding: 10px 11px 12px 14px; box-sizing: border-box"> | |
| <div id="border" style="border: solid; width: 100%; height: 100%; box-sizing: border-box"> | |
| <div style="width: 100px; height: 100px; background: green"></div> | |
| </div> | |
| </body> |