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html在图片上实现下雨效果_html/css_WEB-ITnose

 1   2   3   4   5   6 body { 7     overflow: hidden; 8     height: 100%; 9     margin: 0;10     padding: 0;11 }12 13 img {14     width: 100%;15     height: 100%;16 }17  18   19  20     function run() {21         var image = document.getElementById('background');22         image.onload = function() {23             var engine = new RainyDay({24                 image : this,25             });26             engine.rain([ [ 1, 2, 8000 ] ]);27             engine.rain([ [ 3, 3, 0.88 ], [ 5, 5, 0.9 ], [ 6, 2, 1 ] ], 100);28         }29         image.crossOrigin = 'anonymous';30         image.src = 'http://i.imgur.com/N7ETzFO.jpg';31     }32  33  哇塞! 34  35  36      37  38   

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