/* MIXINS
============================================================== */

//calculating a responsive font size in vw from pixels (an initial width is 1440 px)
//setting the responsive font-size in vw (with fallback in px)
@function calculateVw($px-size) {
  $vwSize: $px-size * 100 / 1440px;
  @return $vwSize * 1vw;
}
@mixin resp-font-size($px-size) {
  font-size: $px-size;
  font-size: calculateVw($px-size);
}