$breakpoints: (
  tiny: 320px,
  small: 640px,
  medium: 768px,
  large: 1024px,
  very-large: 1280px,
  extra-large: 1536px,
  ultra-large: 2560px,
);

@mixin section-title-adjustment(){
  h1 > span {
    margin-top: -55px; /* Size of fixed header */
    padding-bottom: 55px;
    display: block;
  }
}