//雪花飘落及背景设置(背景图片通过博客园上传后获取---博客园管理>相册>上传图片>点击图片>F12查看图片路径>替换到下方代码中)
#home h1{
    font-size:45px;
}
body{
background-image: url("https://images.cnblogs.com/cnblogs_com/dmrbell/1554264/o_200324090859o_fefmkrmg.jpg"); background-position: initial; background-size: cover; background-repeat: no-repeat; background-attachment: fixed; background-origin: initial; background-clip: initial;
height:100%;
width:100%;
}
#home{
    opacity:0.7;
}
.wall{
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}
div#midground{
    background: url("https://images.cnblogs.com/cnblogs_com/huihuihero/1628712/o_200108030829midground.png");
    z-index: -1;
    -webkit-animation: cc 200s linear infinite;
    -moz-animation: cc 200s linear infinite;
    -o-animation: cc 200s linear infinite;
    animation: cc 200s linear infinite;
}
/*div#foreground{
    background: url("https://images.cnblogs.com/cnblogs_com/huihuihero/1628712/o_200108030913foreground.png");
    z-index: -2;
    -webkit-animation: cc 253s linear infinite;
    -o-animation: cc 253s linear infinite;
    -moz-animation: cc 253s linear infinite;
    animation: cc 253s linear infinite;
}*/
div#top{
    background: url("https://images.cnblogs.com/cnblogs_com/huihuihero/1628712/o_200108030829midground.png");
    z-index: -4;
    -webkit-animation: da 200s linear infinite;
    -o-animation: da 200s linear infinite;
    animation: da 200s linear infinite;
}
@-webkit-keyframes cc {
    from{
        background-position: 0 0;
        transform: translateY(10px);
    }
    to{
        background-position: 0 600%;
    }
}
@-o-keyframes cc {
    from{
        background-position: 0 0;
        transform: translateY(10px);
    }
    to{
        background-position: 0 600%;
    }
}
@-moz-keyframes cc {
    from{
        background-position: 0 0;
        transform: translateY(10px);
    }
    to{
        background-position: 0 600%;
    }
}
@keyframes cc {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}

@keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}
@-webkit-keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}
@-moz-keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}
@-ms-keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}