.icon_scan{
    display: inline-block;
    vertical-align: middle;
    width: 45px;
    height: 45px;
    /* here will be replace sprite image path, and auto set the background-position */
    background: transparent url("style2_z@2x.png") no-repeat 0px 0px;
-webkit-background-size: 90px 90px;
background-size: 90px 90px;
}

.icon_shake{
    display: inline-block;
    vertical-align: middle;
    width: 45px;
    height: 45px;
    /* here will be replace sprite image path, and auto set the background-position */
    background: transparent url("style2_z@2x.png") no-repeat -45px 0px;
-webkit-background-size: 90px 90px;
background-size: 90px 90px;
}

.icon_nearby{
    display: inline-block;
    vertical-align: middle;
    width: 45px;
    height: 45px;
    /* here will be replace sprite image path, and auto set the background-position */
    background: transparent url("style2_z@2x.png") no-repeat 0px -45px;
-webkit-background-size: 90px 90px;
background-size: 90px 90px;
}

.icon_not_exist{
    display: inline-block;
    vertical-align: middle;
    width: 56px;
    height: 56px;
    /* here will be replace sprite image path, and auto set the background-position */
    background: url("./images/not_exist@2x.png?__sprite");
}