.vr_root {
    position: relative;
    width: 100%;
    height: 100vh;
}
.vr_frame {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100vh;
}
.vr_frame iframe {
    border: none;
}
.promotion_text {
    z-index: 100;
    position: absolute;
    top: 50px;
    right: 50px;
}
.promotion_text img {
    width: 600px;
}

.linx_button {
    position: absolute;
    z-index: 1000;
    bottom: 60px;
    right: 30px;
}
.linx_button img {
    width: 150px;
    height: 50px;
    margin-bottom: 20px;
}

@media screen and (max-width: 520px) {
    .promotion_text {
        z-index: 100;
        position: absolute;
        top: 40px;
        right: 20px;
    }
    .promotion_text img {
        width: 300px;
    }
    .linx_button {
        bottom: 80px;
    }
}