body {
    background-image: url(https://img2018.cnblogs.com/blog/1106962/201812/1106962-20181214172347427-1858897503.jpg);
    background-size:100% 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.menu{
    font-size:14px;
}
.dayTitle{
    background-color: rgb(158,0,0);
}