Created
May 29, 2011 15:03
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[HTML5] 背景をグラデーションにする
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| <!DOCTYPE HTML> | |
| <html lang="ja"> | |
| <head> | |
| <title>グラデーションの背景</title> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| // Bg gradient | |
| var canvas = document.createElement( 'canvas' ); | |
| canvas.width = 1; | |
| canvas.height = window.innerHeight; | |
| var context = canvas.getContext( '2d' ); | |
| var gradient = context.createLinearGradient( 0, 0, 0, canvas.height ); | |
| gradient.addColorStop(0, "#ffffff"); | |
| gradient.addColorStop(.5, "#000000"); | |
| context.fillStyle = gradient; | |
| context.fillRect(0, 0, canvas.width, canvas.height); | |
| document.body.style.background = 'url(' + canvas.toDataURL('image/png') + ')'; | |
| </script> | |
| </body> | |
| </html> |
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