.objectvr {
    position: relative;
    overflow: hidden;
}
.objectvr .images {
    position: absolute;
}
.objectvr .images img.hidden {
    visibility: hidden;
}
.objectvr .images img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}
.objectvr .controllers {
    position: absolute;
    right: 20px;
    bottom: 20px;
    left: 20px;
    text-align: center;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding-bottom: 5px;
    border-bottom: 1px solid #fff;
}
.objectvr .controllers button {
    cursor: pointer;
    border: none;
    font: 0/0 a;
    color: transparent;
    width: 32px;
    height: 32px;
    background: transparent url('vtourskin_light.png') no-repeat;
    background-size: 64px 384px;
    position: relative;
    margin: 0 6px;
}
.objectvr .controllers button:hover:before {
    content: '';
    position: absolute;
    top: 0;
    right:0;
    bottom: 0;
    left: 0;
    background: url('vtourskin_light.png') -32px -192px no-repeat;
    background-size: 64px 384px;
    opacity: 0.2;
    -webkit-transform: scale(2);
    transform: scale(2);
}
.objectvr.dark .controllers {
    border-bottom-color: #000;
}
.objectvr.dark .controllers button {
    background-image: url('vtourskin_dark.png');
}
.objectvr .controllers .prev {
    background-position: 0px -96px;
}
.objectvr .controllers .next {
    background-position: -32px -96px;
}
.objectvr .controllers .zoom-in {
    background-position: 0px -160px;
}
.objectvr .controllers .zoom-out {
    background-position: -32px -160px;
}
.objectvr .controllers .full-screen {
    position: absolute;
    right: 10px;
    background-position: 0px -288px;
}

@-webkit-keyframes spin {
    0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
    }
    100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
    }
    }
    @keyframes spin {
    0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
    }
    100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
    }
}
.objectvr.loading:before {
    content: " ";
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -12px;
    margin-top: -12px;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    -webkit-animation: spin 1s infinite linear;
            animation: spin 1s infinite linear;
}
.objectvr.loading.dark:before {
    border-color: rgba(0, 0, 0, 0.2);
    border-top-color: #000;
}