htmlを変更せずに口元、目、眉が顔の上に表示されるようにするにはどうすればよいですか?bgイメージの積み上げ順序を変更するにはどうすればいいですか?
<body>
<div id = "shoulders">
<div id = "face">
<div class = "eyebrow" id = "lefteyebrow"> </div>
<div class = "eyebrow" id = "righteyebrow"> </div>
<div class = "eye" id = "lefteye"> </div>
<div class = "eye" id = "righteye"> </div>
<div id = "mouth"></div>
</div>
</div>
</body>
https://jsfiddle.net/tvkhb8zt/