body {
    background: #f1f1f1;
}
.wy-media-box2 {
	background: #fff;
	padding: 25px;
}
.topimg {
    text-align: center;
	padding: 40px 0 30px 0;
	margin-bottom: 15px;
}
.topimg img {
    max-width: 60%;
}
.layui-timeline .layui-timeline-title img {
	max-width: 80%;
}