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<h2>The feOffset and feBlend Filters</h2>
<svg height="150" width="150" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="f1" width="120" height="120">
<feOffset in="SourceGraphic" dx="20" dy="20" />
<feBlend in="SourceGraphic" in2="offOut" />
</filter>
</defs>
<rect width="90" height="90" stroke="green" stroke-width="3" fill="yellow" filter="url(#f1)" />
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</svg>
</body>
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