body { background: url("#foobar"); background: url("http:foobar"); background: url("https:foobar"); background: url("data:foobar"); background: url("chrome:foobar"); background: url("//foobar"); background: url(); } /* @import url("non_exist.css") */ /* url("non_exist.png") */ /* @import url("non_exist.css") url("non_exist.png") @import url(other.css) */ body { background: #d3d6d8 /*url("does.not.exist.png")*/ url(/static/cached/img/relative.png); } body { background: #d3d6d8 /* url("does.not.exist.png") */ url(/static/cached/img/relative.png) /*url("does.not.exist.either.png")*/; } body { content: "url(non_exist.png)"; content: 'url(non_exist.png)'; } /* Tailwind-style selector */ .tw\:bg-\[url\(\'non_exist.png\'\)\] { background: url(../img/relative.png); } body { font-family: 'sans-serif'; }