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mixin scroll-to-top
    a(href="#").page__scroll-to-top.scroll-to-top
        svg.scroll-to-top__icon
            use(xlink:href="#icon-keyboard_arrow_up")

.scrollback {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  transition: transform 0.30s;
  transform: scale(0);

  &.is-visible {
    transform: scale(1);
  }
}

$(document).ready(function(){

  var toTopBtn = ".scroll-to-top";
  var visible = "is-visible"
	
	//Check to see if the window is top if not then display button
	$(window).scroll(function(){
		if ($(this).scrollTop() > 700) {
			$(toTopBtn).addClass(visible);
		} else {
			$(toTopBtn).removeClass(visible);
		}
	});
	
	//Click event to scroll to top
	$(toTopBtn).click(function(){
		$('html, body').animate({scrollTop : 0},2000);
		return false;
	});
});