body {
    background: rgba(12, 100, 129, 1) url(https://images.cnblogs.com/cnblogs_com/LUCKMOON/1199452/o_%e5%bd%bb%e9%aa%a8%e5%af%92.jpg) fixed no-repeat;
    background-size: cover;
    color: #000;
    font-family: Verdana,Arial,Helvetica,sans-serif;
    font-size: 14px;
    min-height: 100%;
}
#home {
    margin: 0 auto;
    width: 100%;
    padding-top: 30px;
    padding-bottom:66px;
}
#main{
    width: 85%;
    text-align: left;
    padding: 20px 0 0 0px;
    overflow: hidden;
    opacity: 0.88;
}
#mainContent {
    width: 78%;
}
#header {
	margin-top: 50px;
        width: 85%;
        margin: 0 auto;
}
#footer {
	margin-bottom: 50px;
}