.wrapper {
	position:absolute; 
	top:40px; bottom:0px;
	width:100%;
	overflow:auto;
}

#pullDown, #pullUp {
	background:#fff;
	height:40px;
	line-height:40px;
	padding:5px 10px;
	border-bottom:1px solid #ccc;
	font-weight:bold;
	font-size:14px;
	color:#888;
}
#pullDown .pullDownIcon, #pullUp .pullUpIcon  {
	display:block; float:left;
	width:40px; height:40px;
	background:url(../images/pull-icon_402x.png) 0 0 no-repeat;
	-webkit-background-size:40px 80px; background-size:40px 80px;
	-webkit-transition-property:-webkit-transform;
	-webkit-transition-duration:250ms;	
}
#pullDown .pullDownIcon {
	-webkit-transform:rotate(0deg) translateZ(0);
}
#pullUp .pullUpIcon  {
	-webkit-transform:rotate(-180deg) translateZ(0);
}

#pullDown.flip .pullDownIcon {
	-webkit-transform:rotate(-180deg) translateZ(0);
}

#pullUp.flip .pullUpIcon {
	-webkit-transform:rotate(0deg) translateZ(0);
}

#pullDown.loading .pullDownIcon, #pullUp.loading .pullUpIcon {
	background-position:0 100%;
	-webkit-transform:rotate(0deg) translateZ(0);
	-webkit-transition-duration:0ms;

	-webkit-animation-name:loading;
	-webkit-animation-duration:2s;
	-webkit-animation-iteration-count:infinite;
	-webkit-animation-timing-function:linear;
}

@-webkit-keyframes loading {
	from { -webkit-transform:rotate(0deg) translateZ(0); }
	to { -webkit-transform:rotate(360deg) translateZ(0); }
}