| <!DOCTYPE html> |
| <html> |
| <style> |
| div { |
| margin-left: 3px; |
| } |
| div::before { |
| width: 100px; |
| height: 100px; |
| margin-left: 2px; |
| content: 'foo'; |
| color: rgba(0, 0, 0, 0); |
| } |
| canvas{ |
| margin-left: 2px; |
| display: block; |
| position: relative; |
| top: -1em; |
| } |
| </style> |
| <body style="font: 10px/1 Ahem;"> |
| <div><canvas width="30px" height="10px"></canvas></div> |
| <script> |
| document.addEventListener('DOMContentLoaded', function() { |
| var canvas = document.querySelector('canvas'); |
| var context = canvas.getContext("2d"); |
| context.strokeStyle = 'green'; |
| context.lineWidth = 4; |
| context.strokeRect(0, 0, 30, 10); |
| }); |
| </script> |
| </body> |
| </html> |
