scroll.js

// Allow scrolling on anything with class scrollable
$(document).on('touchstart', '.scrollable', function (event) {
	var startY = event.originalEvent.touches[0].pageY;
	var startTopScroll = this.scrollTop;

	if (startTopScroll <= 0) {
		this.scrollTop = 1;
	}

	if (startTopScroll + this.offsetHeight >= this.scrollHeight) {
		this.scrollTop = this.scrollHeight - this.offsetHeight - 1;
	}
});
$(document).on('touchmove', '.scrollable', function (event) {
	if ($(this)[0].scrollHeight > $(this).outerHeight()) {
		event.stopImmediatePropagation();
		event.stopPropagation();
	}
});

scroll.scss

.scrollable {
	overflow: scroll;
	-webkit-overflow-scrolling: touch;
	max-height: $height;
	max-width: $width;
}