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源代码：
点击运行
<!DOCTYPE html> <html> <body> <p><b>Note: </b>Internet Explorer and Safari do not support SVG filters yet!</p> <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> <defs> <filter height="200%" id="f1" width="200%" x="0" y="0"> <feOffset dx="20" dy="20" in="SourceAlpha" result="offOut" /> <feGaussianBlur in="offOut" result="blurOut" stdDeviation="10" /> <feBlend in="SourceGraphic" in2="blurOut" mode="normal" /> </filter> </defs> <rect fill="yellow" filter="url(#f1)" height="90" stroke="green" stroke-width="3" width="90" /> </svg> </body> </html>
运行结果