filter: blur(1px); doesn’t work in Firefox, Internet Explorer, and Opera
Try with SVG filter. img { filter: blur(3px); -webkit-filter: blur(3px); -moz-filter: blur(3px); -o-filter: blur(3px); -ms-filter: blur(3px); filter: url(#blur); filter: progid:DXImageTransform.Microsoft.Blur(PixelRadius=”3″); } <img src=”https://i.stack.imgur.com/oURrw.png” /> <svg version=”1.1″ xmlns=”http://www.w3.org/2000/svg”> <filter id=”blur”> <feGaussianBlur stdDeviation=”3″ /> </filter> </svg>