<svg width="7.5cm" height="5cm" viewBox="0 0 200 120" version="1.1">
     <title>Example filters01.svg - introducing filter effects</title>
     <desc>An example which combines multiple filter primitives to produce a 3D lighting effect on a graphic consisting of the string "SVG" sitting on top of oval filled in red and surrounded by an oval outlined in red.</desc>
          <filter id="MyFilter" filterUnits="userSpaceOnUse" x="0" y="0" width="200" height="120">
               <feGaussianBlur in="SourceAlpha" stdDeviation="4" result="blur"/>
               <feOffset in="blur" dx="4" dy="4" result="offsetBlur"/>
               <feSpecularLighting in="blur" surfaceScale="5" specularConstant=".75" specularExponent="20" lighting-color="#bbbbbb" result="specOut">
                    <fePointLight x="-5000" y="-10000" z="20000"/>
               <feComposite in="specOut" in2="SourceAlpha" operator="in" result="specOut"/>
               <feComposite in="SourceGraphic" in2="specOut" operator="arithmetic" k1="0" k2="1" k3="1" k4="0" result="litPaint"/>
                    <feMergeNode in="offsetBlur"/>
                    <feMergeNode in="litPaint"/>
     <rect x="1" y="1" width="198" height="118" fill="#888888" stroke="blue"/>
     <g filter="url(#MyFilter)">
               <path fill="none" stroke="#D90000" stroke-width="10" d="M50,90 C0,90 0,30 50,30 L150,30 C200,30 200,90 150,90 z"/>
               <path fill="#D90000" d="M60,80 C30,80 30,40 60,40 L140,40 C170,40 170,80 140,80 z"/>
               <g fill="#FFFFFF" stroke="black" font-size="45" font-family="Verdana">
                    <text x="52" y="76">SVG</text>
Original SVG source