remove tabindex -1 from views accordion
it sounds like you want to modify the source contributed module :(.

You just write some custom CSS in your theme to target the item. In your theme.info file:

scripts[]=my_theme_overrides.js


Then in your javascript file you write the following, as an example (untested, should work, you may need to tweak it.):

/* in my_theme_overrides.js */
(function ($) {
  $("#how_to_become_a_grantee-block-0").removeAttr("tabindex");
})(jQuery);