title: DocumentNode.SelectNodes return null
body: <p>I was wondering if you could explain to me what's wrong in my script. My string "temperature" return always "null".
  I'm using the HtmlAgilityPack. What i would like to do is to get the temperature from my friend website's.</p>
  
  <p>my code</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>private void temperatureBtn_Click(object sender, EventArgs e)
          {
              string url = "http://perso.numericable.fr/meteo-kintzheim/";
              HtmlWeb web = new HtmlWeb();
              HtmlAgilityPack.HtmlDocument doc = web.Load(url);
  
              string temperature = doc.DocumentNode.SelectNodes("/html/body/table[1]/tbody/tr[5]/td[3]/b[2]/font")[0].InnerText;
  
              MessageBox.Show(temperature.ToString());
          }</code></pre>
  </div>
  </div>
  </p>
  
  <p>I would be really grateful if someone could help me :D</p>