html,body{
	margin: 0;
	padding:0;
}
body{
	width:100%;
	max-width: 750px;
	min-width: 320px;
	margin: 0 auto;
}
img{border:none;vertical-align:middle;}
.body{
	width:100%;
	max-width: 750px;
	min-width: 320px;
	margin: 0 auto;
}

@media screen and (min-width:320px) and (max-width:350px) {
    .txt{
        font-size: 15px !important;
    }
}
@media screen and (min-width:350px) and (max-width:480px) {
    .txt{
        font-size: 16px !important;
    }
}

@media screen and (min-width:480px) and (max-width:640px) {
    .txt{
        font-size: 18px !important;
    }
}
.fixed{width:100%;max-width: 750px;min-width:320px;z-index: 1058;}
.head{
	position: relative;
	width:100%;
}
.banner img,.head img,.fixed img{
	display: block;
	line-height: 0;
	border: none;
	width:100%;
}
.banner{
	position: relative;
}
.btn {
    width: 63%;
    position: absolute;
    bottom: 1.5%;
    left: 50%;
    margin-left: -31%;
}
.head .btn img{
    width: 100%;
    position: relative;
    top: 70px;
}
.txt{
	position: absolute;
	top: 94%;
	width:100%;
	color:#fcd865;
	font-family: "microsoft yahei";
	font-size: 15px;
	text-align: center;
}
img{
	 width: 100%;
}
.banner .top1{
	top:20%;
}
.banner .top2{
	top:13%;
}
.footBtn{
	width:48%;
	position: absolute;
	bottom: 7%;
	left:50%;
	margin-left: -24%;
}
.top {
            position: fixed;
            /* top: 0px; */
            /* width: 100%; */
        }