.cesium-performance-watchdog-message-area {
    position: relative;
    background-color: yellow;
    color: black;
    padding: 10px;
}

.cesium-performance-watchdog-message {
    margin-right: 30px;
}

.cesium-performance-watchdog-message-dismiss {
    position: absolute;
    right: 0;
    margin: 0 10px 0 0;
}