Actually I have a css snipped like this:
.item1 {
background-image: url("../img/myimage1.jpg");
background-repeat: no-repeat;
background-position: top center;
background-size: cover;
}
I will replace this background image with an CDN image url:
background-image: url("https://cdn.com/img/myimage1.jpg");
I would like to make sure that if there is a problem with the CDN provider that an image is loaded anyway. How can I now specify an alternative local image path in addition to the defined CDN url?