css - Bootstrap defaulting all text to bold -

i'm creating website , using bootstrap css framework. problem is defaulting text bold, quite annoying. swear didn't used this.

p.s bootstrap stylesheets unaltered.

here code:

    <!-- latest compiled , minified css --> <link rel="stylesheet" href="css/bootstrap.css">  <!-- latest compiled , minified javascript --> <script src="https://code.jquery.com/jquery-2.2.4.js" integrity="sha256-it6q9imjyuqimwnd9ldybustiq/8puow33aoqmvfpqi=" crossorigin="anonymous"></script> <script src="js/bootstrap.min.js"></script>  test 

and screenshot:

for when inevitably comes again, question has been asked , answered in form here: https://superuser.com/questions/811097/helvetica-fonts-always-rendering-as-bold-in-chrome