How can I make the label appear on the image?

``
var pin_img = ‘/assets/plugins/Cesium-1.64/img/pin.png’;

<?for($i = 0; $i < 200;$i++):?>

viewer.entities.add({

name : ‘<?=$cesium_geo_data['data'][$i]['ip']?>’,

position : Cesium.Cartesian3.fromDegrees(<?=$data['data'][$i]['longitude']?>, <?=$data['data'][$i]['latitude']?>),

label : {

show : true,

text: ‘<?=$data['data'][$i]['ip']?>’.toString(),

font: ‘12px sans-serif’,

fillColor : Cesium.Color.BLACK,

pixelOffset : new Cesium.Cartesian2(0, -22),

},

billboard : {

image : pin_img,

verticalOrigin : Cesium.VerticalOrigin.BOTTOM,

heightReference : Cesium.HeightReference.CLAMP_TO_GROUND,

},

first problem was solved using a pixelOffset.

but I haven’t found a way to the second question, so if anyone know, please reply.