message: fix(demo): fix demo header static position for safari browser
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diff: @@ -517,14 +517,17 @@ a:hover {
  /* above 768px */
  @media (min-width: 768px) {
  .header {
  - position: -webkit-sticky;
  - position: sticky;
  + position: fixed;
  + width: 100%;
  top: 0;
  z-index: 1090; // to overlap most positioned elements in bootstrap
  }
  .header-dropdown {
  z-index: 1090;
  }
  + .main {
  + padding-top: $header-height;
  + }
  .modal-backdrop {
  z-index: 2000; // to overlap header :)
  }
  