.cesium-widget-credits{
display:none!important;
visibility:hide!important;
}
另外一种去掉版权信息的方法:
var viewer = new Cesium.Viewer("cesiumContainer", {
animation: false, //动画控制不显示
timeline: false, //时间线不显示
fullscreenButton: false, //全屏按钮不显示
infoBox: false
});
//去除版权信息
viewer._cesiumWidget._creditContainer.style.display = "none";