body {
background:#333;
background-position: top;
background-repeat: no-repeat;
background-size: 100% auto;
background-attachment: fixed;
background-image:url(https://images.cnblogs.com/cnblogs_com/lvhc/1935064/o_220929080952_ddd.jpg);
height: 100vh;
overflow-y: auto;
}

.mypagetop{
    text-align: center;
    height:0;
}
#navigator{
    
}

#mainContent{
    
}
#home{
    
}
#main{
    
}