ul,
dl,
ol {
  @include margin(a 0, b 1);
  @include padding(a 0, l 1);

  & & { // no margin for sublists
    @include margin(b 0);
  }
}

// never ever show lists in navigation or fieldsets blocks as lists
nav,
fieldset {
  ul,
  ol {
    @include padding(a 0);
    list-style: none;
  }
}