#mainBg a,#mainBg img{border:0;}
#mainBg{position:relative;width:1000px;height:650px;border:0;}
#mainBg .btn{position:absolute;}
#mainBg .btn.call{bottom:120px; margin-left:-165px; left:50%;}
#mainBg .btn.milk{bottom:220px; left:50px;}
#mainBg .btn.domae{bottom:220px; right:30px;}
#mainBg .btn.wins{top:70px; margin-left:-176px; left:50%;}