/*分辨率大于1200*/
@media screen and (min-width: 1200px){
    #topInit{
        width: 1100px;
        /*background-color: black*/
    }
}
/*分辨率大于960小于1199*/
@media screen and (min-width: 960px) and (max-width: 1199px){
    #topInit{
        width: 100%;
       /* background-color: greenyellow*/
    }
}
/*分辨率大于768小于959*/
@media screen and (min-width: 768px) and (max-width: 959px){
    #topInit{
        width: 960px;
        /*background-color: blue*/
    }
}
/*分辨率大于480小于767*/
@media only screen and (min-width: 480px) and (max-width: 767px){
    #topInit{width: 960px;
        /*background-color: yellow*/
    }
}
/*分辨率小于759*/
@media only screen and (max-width: 759px){
    #topInit{width: 960px;
        /*background-color: green*/
    }
}