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++ <svg
++ width="120"
++ height="120"
++ xmlns="http://www.w3.org/2000/svg"
++ xmlns:xlink="http://www.w3.org/1999/xlink">
++ <filter id="dropShadow">
++ <feGaussianBlur in="SourceAlpha" stdDeviation="3" />
++ <feOffset dx="2" dy="4" />
++ <feMerge>
++ <feMergeNode />
++ <feMergeNode in="SourceGraphic" />
++ </feMerge>
++ </filter>
++
++ <circle cx="60" cy="60" r="50" fill="green" filter="url(#dropShadow)" />
++ </svg>