/* viewer toolbar style */
.viewer-toolbar-icon {
    opacity: 0.8;
}

.viewer-toolbar-icon:hover {
    opacity: 1.0;
    -webkit-filter: drop-shadow(0px 0px 5px #fff);
    filter: drop-shadow( 0px 0px 5px #fff );
}

#guiviewer3d-toolbar {
    opacity: 0.0;
    pointer-events: none;
}

#guiviewer3d-toolbar:hover {
    opacity: 0.9 !important;

    transition: opacity 0.2s ease !important;
}

.guiviewer3d-toolbar-open {
    opacity: 0.8 !important;
    pointer-events: all !important;

    -webkit-transition: opacity 0.5s ease-out;
    -moz-transition: opacity 0.5s ease-out;
    -ms-transition: opacity 0.5s ease-out;
    -o-transition: opacity 0.5s ease-out;
    transition: opacity 0.5s ease-out;
}