message: Fix safari border bug and get responsive sizes for iframe
diff: iframe
  box-shadow 4px 4px 4px colors-gray-background
  + height 2150px !important
  + padding 1px
  + +below(400px)
  + height 2000px !important
  + +below(380px)
  + height 1950px !important
  + +below(340px)
  + height 1700px !important
  h2
  margin-top 4em
  