nav{

    /*background: -moz-linear-gradient(top,  rgba(68,68,68,0.9) 0%, rgba(34,34,34,0.9) 100%); /* FF3.6+ */
    /*background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(68,68,68,0.9)), color-stop(100%,rgba(34,34,34,0.9))); /* Chrome,Safari4+ */
    /*background: -webkit-linear-gradient(top,  rgba(68,68,68,0.9) 0%,rgba(34,34,34,0.9) 100%); /* Chrome10+,Safari5.1+ */
    /*background: -o-linear-gradient(top,  rgba(68,68,68,0.9) 0%,rgba(34,34,34,0.9) 100%); /* Opera 11.10+ */
    /*background: -ms-linear-gradient(top,  rgba(68,68,68,0.9) 0%,rgba(34,34,34,0.9) 100%); /* IE10+ */
    /*background: linear-gradient(to bottom,  rgba(68,68,68,0.9) 0%,rgba(34,34,34,0.9) 100%); /* W3C */
    /*filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#e6444444', endColorstr='#e6222222',GradientType=0 ); /* IE6-9 */
    /*-webkit-box-shadow: 6px 6px 7px -3px rgba(50, 50, 50, 0.75);
-moz-box-shadow:    6px 6px 7px -3px rgba(50, 50, 50, 0.75);
box-shadow:         6px 6px 7px -3px rgba(50, 50, 50, 0.75);
    float: left;
    padding: 15px 0;
    position: fixed;
    width: 220px;*/
}
#bloque_uno #menu{
    background: rgba(0, 0, 0, 0.9) none repeat scroll 0 0;
    float: left;
    height: calc(100vh - 50px);
    top: 50px;
    width: 200px;
}

@media(max-width: 600px){
    .img-nav-logo{
        
    }
}

.menu_imagen{
    display: block;
    float: left;
    height: 100%;
    overflow: hidden;
    padding: 0;
    width: 20%;
}

/* Estilos Subopciones */
#contenedor_submenu{
    margin: 0 auto 10px;
    width: 100%;
}

#flecha_uno_submenu{
    cursor: pointer;
    left: 0;
    position: absolute;
    top: 50;
    width: 30px;
    height: 45px;
}

#flecha_dos_submenu{
    cursor: pointer;
    top: 50px;
    position: absolute;
    right: 0;
    width: 30px;
    height: 45px;
}

.box {
    color: rgba(0,0,0, .8);
    text-shadow: 0 1px 0 #fff;
    position: relative;
    width: 60%;
}

.box:before, .box:after {
    z-index: -1;
    position: absolute;
    content: "";
    bottom: 15px;
    left: 10px;
    width: 50%;
    top: 80%;
    max-width:300px;
    background: rgba(0, 0, 0, 0.7);
    box-shadow: 0 15px 10px rgba(0, 0, 0, 0.7);
    transform: rotate(-3deg);
}

.box:after {
    transform: rotate(3deg);
    right: 10px;
    left: auto;
}

.item_subopcion img{
    cursor: pointer;
    display: inline-block;
    margin: 5px 0;
}

#barrascroll{
    border: 1px solid #AFAFAF;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background: #444;
    height: 3px;
    margin: 0 auto;
    position: relative;
    width: 50%;
}

.mascara_sombra{
    height: 100%;
    position: absolute;
    width: 20px;
}

.nav .open > a,
.nav .open > a:hover,
.nav .open > a:focus {
    background-color: transparent !important;
    /*border-color: #337ab7;*/
}

#opciones_usuario{
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}
#opciones_usuario .encabezado_opciones_usuario{
    background-color: rgba(91, 39, 10, 1);
}

#opciones_usuario li{
    /*border-top: 1px solid #a3a3a3;*/
    cursor: pointer;
}

#opciones_usuario label {
    float: left;
    height: 16px;
    margin: 2px 6px 0 3px;
    padding: 0;
    width: 16px;
}

#opciones_usuario li:hover{
    background: rgb(206,220,231); /* Old browsers */
    background: -moz-linear-gradient(top, rgba(206,220,231,1) 0%, rgba(89,106,114,1) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(206,220,231,1)), color-stop(100%,rgba(89,106,114,1))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, rgba(206,220,231,1) 0%,rgba(89,106,114,1) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, rgba(206,220,231,1) 0%,rgba(89,106,114,1) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, rgba(206,220,231,1) 0%,rgba(89,106,114,1) 100%); /* IE10+ */
    background: linear-gradient(to bottom, rgba(206,220,231,1) 0%,rgba(89,106,114,1) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#cedce7', endColorstr='#596a72',GradientType=0 ); /* IE6-9 */
}

#opciones_usuario > li > a{
    display: unset;
    padding: 0px;
}

.item_subopcion .glyphicon {
    font-size: 56px;
    top: 0%;
    right: -24%;
}