div#RightPanel {
    position: fixed;
    top: 0;
    right: -50%;
    bottom: 0;
    padding: 25px;
    overflow: auto;
    width: 30%;
    background: #131313;
    max-width: 300px;
    min-width: 300px;
    z-index: 10;
    box-shadow: 0px 0px 17px -12px #000000;
    transition: all .3s ease-in-out;
    box-sizing: border-box;
}

div#RightPanel.show {
    right: 0px;
    pointer-events: all;
}

div#RightPanel .closePanelBtn {
    font-size: 30px;
    line-height: 20px;
    cursor: pointer;
    opacity: .5;
    transition: all .3s;
}

div#RightPanel .navigation h3 {
    margin: 0px;
}

div#RightPanel .closePanelBtn:hover {
    opacity: 1;
}

div#RightPanel.double {
    width: 750px;
    max-width: 750px;
    min-width: 750px;
}

@media screen and (max-width: 600px) {

    div#RightPanel {
        width: 100vw;
        max-width: 100vw;
        top: 50px;
        right: 0px;
        opacity: 0;
        pointer-events: none;
        /*right: -100vw;*/
    }

    div#RightPanel.show {
        top: 0px;
        opacity: 1;
        pointer-events: all;
    }
}