Problem loading css files in some templates
You will want to include the siteUrl variable before the file path to normalize all the resource URLs. That will also help when you move to production. For example: 

{% includeCssFile siteUrl~'assets/html/css/slidestyle.css' %}


In your general config file, you can set different site URLs based on the server you are on.

return array(
    '*' =&gt; array(),

    'localhost =&gt; array(
        'devMode' =&gt; true,
        'siteUrl' =&gt; 'http://localhost/craft/'
    ),
    'yourProductionDomain.com' =&gt; array(
        'devMode' =&gt; false,
        'siteUrl' =&gt; 'http://www.yourProductionDomain.com'    
    ),
);