#idTheta {
    margin-bottom: 1em;
}
    #theta-select {
        margin-left: auto;
        margin-right: auto;
        display: block;
    }
    #idTheta .ricoh-theta-spherical-image {
        margin-left: auto;
        margin-right: auto;
    }
    #theta-select .active {
        background: linear-gradient(to bottom,#2e6da4 80%,#337ab7 93%,#2e6da4 93%);
        color: #fff;
    }
    .theta-main-panel {
        display: flex;
        justify-content: center;
    }