jquery - How do I navigate to slightly above an anchor tag? -


i know how navigate given anchor tag on page - i'm trying link part of page 30-40 pixels above target anchor. reason have bootstrap navigation ends covering part of relevant content if directly part of page anchor.

currently have link:

%a{:href => root_path + "#how_it_works"} how works

and on page links to:

.span12#how_it_works

any thoughts on how can link navigate section of page above .span12#how_it_works?

you might able hack around adding padding in css, surest way javascript: 

$('a[href="#how_it_works"]').on('click',function(e){   // prevent normal scrolling action   e.preventdefault();   // grab target url anchor's ``href``   var target = $(this.hash);   target = target.length ? target : $('[name=' + this.hash.slice(1) +']');      if (target.length) {            window.scrollto(0, target.offset().top - 50); // <-- our offset in px adjust necessary       return false;   } });

here's codepen.

this uses modified version of chris coyier's smooth scroll script. i've taken "smoothness" out of scrolling, add in animating scrolltop so: 

   if (target.length) {      $('html,body').animate({          scrolltop: target.offset().top + 20     }, 1000);     return false;    }

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