body {
    color: #000000;

    background: #eeeeee url("../img/bg.jpg") no-repeat fixed center/cover;
    overflow-x: hidden;
}
.panel {
    background-color: #d7d7d7;
    width: 350px;
    z-index: 999;
    height: 100%;
    position: fixed;
    top: 0;
    right: -350px;

    transition: 0.3s all ease-in-out;
}
.panel.show {
    right: 0 !important;
}

#player {
    width: 100%;
    height: 100%;
}

@media screen and (max-width: 767px) {
    .panel {
        width: 250px !important;
        right: -250px !important;
    }
}