/* start bg-dark */

div#bg-dark{
    width: 100vw;
    height: 100vh;
    background-color: #ffffff;
    z-index: 0;
    position: fixed;
    top: 0;
    opacity : 0; 
    transition:opacity .3s;
}
div#bg-dark.bg-dark-show{
    opacity: 1;
    z-index: 2;
}
div#bg-dark-menu{
    width: 100vw;
    height: 100vh;
    background-color: #000000d4;
    z-index: 0;
    position: fixed;
    top: 0;
    display: none;
    opacity : 0; 
    transition:opacity .3s;
}
div#bg-dark-menu.bg-dark-menu-show{
    opacity: 1 ;
    display: block;
    z-index: 5 ;
}



/* finish bg-dark */