title: negative margin with jquery css
body: <p>Sure this question it´s very stupid, and i think it´s stupid, but i don´t know why don´t show me negative values in this jquery function for css, i need send -15% as margin-left and don´t works, if i put inside funtion this value works, but sending across function no, i don´t understand this :</p>
  
  <pre><code>function win(top,width,marginizq)
  {
  jQuery("#win_background").show(1000);
  jQuery("#win_loader").css("margin-top",""+top);
  jQuery("#win_loader").css("width",""+width);
  jQuery("#win_loader").css("margin-left",""+marginizq);
  }
  
  
  
  &lt;script&gt;
  win("200","30%","-15%");
  &lt;/script&gt;
  </code></pre>
  
  <p>All works fine but don´t get works when put negative -15%, if i put inside function as default yes</p>
  
  <p>Why don´t works this ? i understand value must send negative or no, right ?</p>
  
  <p>This it´s my question, thank´s</p>