body {
  border: 10px solid fuchsia;
  border-image: url("https://files.catbox.moe/37e2yf.jpg") 33% fill / 10px 20px / 0.1 space;
}
body {
  background-image: url(https://files.catbox.moe/m1gzkq.webp);
}
h1 {
  color: blue;
}
p {
  color: red;
}