@charset "utf-8";
.btn a.btn-bottom {
	position: absolute;
	top: 9.3rem;
    left: 35%;
	width:2.5rem;
}
.btn1 a.qq-bottom {
    width:1.5rem;
    position: fixed;
    top:7rem;
	right:0%;
}
a{text-decoration:none; }
a:hover{text-decoration:none}
.dw_propt{ width: 100%; position: fixed; left: 0; bottom: 0;}
.dw_propt .ppt_dw img{width: 100%;top: 50%;transform: translateY(-100%);position: absolute;}
footer {
    min-height: 1rem;
    padding: 0.2rem 0;
    text-align: center;
} 








