Template:Sandbox/styles.css

.testing {
	background-image: url(https://upload.wikimedia.org/wikipedia/commons/e/e9/Puerta_de_Palmas%2C_Badajoz%2C_Espa%C3%B1a%2C_2020-07-22%2C_DD_82.jpg);
}
.testing2 {
	background-image: url(https://hacksguidewiki.sfo3.digitaloceanspaces.com/hacksguidewiki/Testfile.jpg);
}