<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
svg rect{
stroke:red;
stroke-width:3;
fill:#339933;
}
</style>
</head>
<body>
<svg height="125" width="125">
<filter id="point" x="0" y="0">
<feGaussianBlur in="SourceGraphic" stdDeviation="15" />
</filter>
<rect width="100" height="100" filter="url(#point)" />
</svg>
</body>
</html>