PHP looses style after redirecting to itself
I inherited small php/javascript project, first time working with php. Question:
A page, for example 'contactus.php'  after form evaluation and submission, redirects to itself->'contactus.php'. PHP on a page processes parameters and forms output, a success message. Everything is OK, but page looses all styling, i.e. - looses link to the css file (as I guess). Why it happens and what I am to do about it? 
PHP looses style after redirecting to itself
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I inherited small php/javascript project, first time working with php. Question:
A page, for example 'contactus.php'  after form evaluation and submission, redirects to itself->'contactus.php'. PHP on a page processes parameters and forms output, a success message. Everything is OK, but page looses all styling, i.e. - looses link to the css file (as I guess). Why it happens and what I am to do about it? 