/* Import a style sheet */
@import url("https://www.example.com/style.css");

/* Import a font */
@import url("https://fonts.googleapis.com/css2?family=Roboto&display=swap");
font-family: 'Roboto', sans-serif;

/* Use an image in background */
background: url("https://mdn.mozillademos.org/files/16761/star.gif") bottom right repeat-x blue;