span.cesium-projectionPicker-wrapper {
    display: inline-block;
    position: relative;
    margin: 0 3px;
}

.cesium-projectionPicker-visible {
    visibility: visible;
    opacity: 1;
    transition: opacity 0.25s linear;
}

.cesium-projectionPicker-hidden {
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.25s, opacity 0.25s linear;
}

.cesium-projectionPicker-wrapper .cesium-projectionPicker-none {
    display: none;
}

.cesium-projectionPicker-wrapper .cesium-projectionPicker-dropDown-icon {
    box-sizing: border-box;
    padding: 0;
    margin: 3px 0;
}

.cesium-projectionPicker-wrapper .cesium-projectionPicker-buttonPerspective,
.cesium-projectionPicker-wrapper .cesium-projectionPicker-buttonOrthographic {
    margin: 0 0 3px 0;
}

.cesium-projectionPicker-wrapper .cesium-projectionPicker-buttonPerspective .cesium-projectionPicker-iconOrthographic {
    left: 100%;
}

.cesium-projectionPicker-wrapper .cesium-projectionPicker-buttonOrthographic .cesium-projectionPicker-iconPerspective {
    left: -100%;
}

.cesium-projectionPicker-wrapper .cesium-projectionPicker-selected {
    border-color: #2e2;
    box-shadow: 0 0 8px #fff, 0 0 8px #fff;
}