Base64 CSS image (for cross-browser support):
background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1IiBoZWlnaHQ9IjUiPgo8cmVjdCB3aWR0aD0iNSIgaGVpZ2h0PSI1IiBmaWxsPSJ0cmFuc3BhcmVudCI+PC9yZWN0Pgo8cmVjdCB3aWR0aD0iMiIgaGVpZ2h0PSIyIiBmaWxsPSIjNDc0NzQ3Ij48L3JlY3Q+Cjwvc3ZnPg==");