.site-footer {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18'%3E%3Cpath d='M-2 16 L16 -2 M6 20 L20 6' stroke='%23ffffff' stroke-width='.45' stroke-opacity='.055'/%3E%3C/svg%3E");
  background-size: 16px 16px;
}