* {
    margin: 0;
    padding: 0;
}

body {
    font: 0.875rem/1.5 'Noto Mono','PingFang SC','微软雅黑',tahoma, arial, 'Hiragino Sans GB', sans-serif;
    color: rgba(0, 0, 0, .6);
    width: 100%;
    height: 100vh;
    position: relative;
	overflow-y: auto;
	background: #e9ecef;
    background-size: 100% 100%;
}
.content{
    width:100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.iconBox {
    width: 60%;
    padding: 50px;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    background:#FFF;
}
footer {
	position:absolute;
	bottom:10px;
    width: 100%;
    text-align: center;
}
@media (max-width: 768px) {
    .content{
        height:80vh;
    }
    .iconBox {
        width: 80%;
		padding:0px;
    }
    footer {
        color: rgba(255, 255, 255, .9);
    }
}