PUG: CSS Class

doctype
html(lang="en")
    head
        title Class Selector For All Elements
        style.
            h1.center{

                text-align: center;
                color: red;
                }

            p.left{
                text-align: left;
                color: blue;
            }
            body

h1(class='center') Heading
p(class='left') What if you have a top level domain which redirects to something like http://thisrocks.com/app/ and all internal links need to include app/ in their URLs.