.NavBar_zoomIn{
background-image: url(https://staging.huairou.org/wp-content/uploads/2015/12/Group-5254-1.png) !important;
}
.NavBar_zoomOut{
background-image: url(https://staging.huairou.org/wp-content/uploads/2015/12/Group-5253-1.png) !important;
}
.NavBar_MapTypeButtonContainer{
background-image: url(https://staging.huairou.org/wp-content/uploads/2015/12/Group-5256-1.png) !important;
}