<!DOCTYPE html> <html> <head> <style type="text/css"> html { background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAAAXNSR0IArs4c6QAAABVJREFUCNcFwQEBAAAAgBD/TxdQqTAp5AX7Y502AAAAAABJRU5ErkJggg==) no-repeat center center fixed; no-repeat center center fixed; background-size: cover; image-rendering: -moz-crisp-edges; /* Firefox */ } </style> </head> <body> </body> </html>