Probably some error with the Path, Check this
similar post for CSS Image path References.
Just try this to find the issue,
Create a Folder called
Test in your
Desktop or some directory
Inside the
Test Folder, Create another folder called
Images
and save the online image from the above url as
"image.png"
Create an html file (
test.html) inside the Test Folder,with the following content and save it, Later try to open the file in Web Browser. you could able to see the Image loaded from Local.
<html>
<head> <style>
body {
background-image: url(Images/image.png);
} </style>
</head>
<body>
</body>
</html>