title: HTML - Is it necessary to enclose a call to the css file into quotes?
body: <p>I have a .html file and ist .css file. I call the .css trough the instruction</p>
  
  <pre><code>&lt;link rel= stylesheet href= mystyle.css&gt;
  </code></pre>
  
  <p>But if I use</p>
  
  <pre><code>&lt;link rel= "stylesheet" href= "mystyle.css"&gt;
  </code></pre>
  
  <p>then nothing changes in my page. Is there some difference between using the quotes or not? </p>