LP-established cosmetics manufacturers that make full use javascript and css is fashionable

Today we’ll introduce a landing page that has a little trick.
This is a site of long established store, Isehan, which sells cosmetics for ladies.
When you scroll or jump with navigation button on left, background image and color changes.
Coded with CSS and Javascript. It will bring lovely impression.
http://www.isehan.co.jp/shinelip/limited/index.html