title: What does a `~` tilde in a CSS `url()` do?
body: <p>E.g. <code>@import url("~./foobar");</code></p>
  
  <p>Saw it <a href="https://github.com/izaakschroeder/font-loader/blob/0e6a9c5c4098279cfd7274d018de2609b608e04a/example/test.css#L2" rel="noreferrer">here</a>, not sure if it's some package specific thing or if it's actual CSS syntax.</p>