title: What is the explanation for a Blazor reference starting with a tilde? "~/(...)"
body: <p>What is the explanation for a Blazor reference starting with a tilde? "~/(...)"</p>
  
  <p>This can be found in _Hosts.cshtml file:</p>
  
  <pre><code>&lt;link href="~/css/Chart.css" rel="stylesheet" /&gt;
  &lt;link href="~/css/site.css" rel="stylesheet" /&gt;
  </code></pre>
  
  <p>What is the exact meaning of "~"? What is the difference to just "/" or without?</p>
  
  <p>Is it important to (not) use "~" if you refer to an external library?</p>
  
  <p>I could not find an explanation for this.</p>