#Snow{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    background: rgba(125,137,95,0.1);
    pointer-events: none;
}

<!--title样式-->
.title {
    background-color: darkcyan;
    color: white;
    height: 30px;
    width: 100%;
    line-height: 30px;
    text-align: center;
    font-family: 华文隶书;
    font-size: 19px;
    opacity: 0.5;
    border-radius: 5px;
}