Using relative URL in CSS file, what location is it relative to?

Question

When defining something like a background image URL in a CSS file, when using a relative URL, where is it relative to? For example:

Suppose the file /styleshe

Answer 1

Try using:

body {
  background-attachment: fixed;
  background-image: url(./Images/bg4.jpg);
}

Images being folder holding the picture that you want to post.