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源代码：
点击运行
<!DOCTYPE html> <html> <body> <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> <defs> <filter filterUnits="objectBoundingBox" height="4" id="test" width="1.5" x="0" y="0"> <feOffset dx="15" dy="20" result="Off1" /> <feFlood style="flood-color:#ff0000;flood-opacity:0.8" /> <feComposite in2="Off1" operator="in" result="C1" /> <feOffset dx="30" dy="40" in="SourceGraphic" result="Off2" /> <feFlood style="flood-color:#ff0000;flood-opacity:0.4" /> <feComposite in2="Off2" operator="in" result="C2" /> <feMerge> <feMergeNode in="C2" /> <feMergeNode in="C1" /> <feMergeNode in="SourceGraphic" /> </feMerge> </filter> </defs> <text style="font:36px verdana bold;fill:blue;filter:url(#test)" x="30" y="100">This is some text!</text> </svg> </body> </html>
运行结果