BootStrap CSS Seattle master page

I have copied the seattle masterpage called it BootstrapMaster. The masterpage works fine. I have downloaded twitter bootstrap and placed it in the location _catalogs/masterpage/CSS/bootstrap.min.css

I have added them to the head section of the masterpage

    <link href="http://ift.tt/1vPtMVX" type="text/css" rel="stylesheet" />
    <link href="http://ift.tt/1DH9HYb" type="text/css" rel="stylesheet" />
    <link href="CSS/bootstrap.min.css" type="text/css" rel="stylesheet" /><!--PE: End of READ-ONLY PREVIEW -->

However when is this right and whats the best way to test whether the style is getting applied?

I don't this is getting picked up when I check in chrome tools.