#home h1{
font-size:45px;
}
body{
    background-image: url("https://images.cnblogs.com/cnblogs_com/kakashi-feng/1945767/o_2103111015511615452157(1).png");
    background-position: initial;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-origin: initial;
    background-clip: initial;
    height:100%;
    width:100%;
    }