body {
    font-size: 13px;
    font-family: Verdana,Arial,Helvetica,sans-serif;
    padding: 0;
    color: #fff;
    margin: 0;
    text-align: center;
    background: url(https://images.cnblogs.com/cnblogs_com/doge/1001048/o_rBABFFG7UsSSKNTPAAvtOG0Yi38426.jpg) no-repeat center top;
    background-size:100% 100%;
    word-wrap: break-word;
    opacity: 0.8;
}
#container {
    width: 90%;
    margin: 1em auto;
    background-color: #333;
    text-align: left;
}
#sidebar-a {
    float: right;
    width: 15%;
    margin: 0 0 0 .5em;
    padding: .5em;
    font-size: .9em;
    border-left-width: 1px;
    border-left-style: solid;
    border-left-color: #666;
}
.Cal {
    width: 100%;
    font-family: Arial;
    font-size: 12px;
    margin-top: 10px;
    margin-bottom: 10px;
    height: 200px;
    border-color: #000;
}