chromium/src/third_party/blink/web_tests/http/tests/devtools/network/resources/initiator.css

.image-background {
    background-image: url("resource.php?type=image&random=1&size=200");
}

.image-background-2 {
    background-image: url("resource.php?type=image&random=1&size=300");
}

@font-face {
    font-family: Example;
    src: url("example.ttf");
}