Fix CSS for source files outside of Laddr

[schlos]

Messages from template:
http://cfc-staging-v3.poplar.phl.io/develop#/html-templates/contact/contactSubmitted.tpl

Look like this:

Other templates add distance from the top with page-header style <div class="page-header">:

.page-header {
    padding-bottom: 9px;
    margin: 40px 0 20px;   <<----
    border-bottom: 1px solid #eee;
}

Proposed change is to introduce margin top spacing in the top element in the <div class="container" style="margin-top: 40px;">:
http://cfc-staging-v3.poplar.phl.io/develop#/html-templates/designs/site.tpl$42

Like this:

element.style {
    width: 400px;
    height: 56px;
    margin-top: 40px; <<----
}

And removing margin top spacing on page-header style to avoid duplication.

Result looks like this: