.thumbnail{
    border: none;
}

.titulo{ 
        border-bottom: 1px solid #9f9b9b;
        margin-bottom: 2em;
    }

.leermas{
    display: none;

}
.imagen{
    width: 100%;
    height: 150px;
    margin: 0 auto;
}
    .mask-slider{
        display: none;
    }
.imagen:hover .mask-slider{
    display: block;
    width: 100%;
    height: 25%;
    background-color: rgba(0, 0, 0, 0.8);
    text-align: center;
    transform: translatey(112px);
}
/*.imagen:hover .mask>.leermas{
    color: #fff;
    display: inline-block;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
    font-size: 12px; 
    text-decoration: none;
    padding: 7px 14px;
    
}*/
    
    .imagen:hover .mask-slider a span{
        border-left: .5px groove #fff;
        font-size: 22px;
        width: 50%;
        height: 100%;
        color: white;
        padding: 5px;
    }
    
    .product-slider-a span:hover{
        background-color: rgba(255, 0, 0, 0.8);
        border-left: .5px groove #fff;
        font-size: 22px;
        color: white;
    }
.caption{
    text-align: center;
}
.subtitulo{
    font-weight: bold;
}

#uno{
    background-image: url(http://www.libros.unam.mx/media//cuentacuento.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size:cover;
}
#dos{
    background-image: url(http://www.libros.unam.mx/media//banner-LA-art-book.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size:cover;
}

#tres{
    background-image: url(http://www.libros.unam.mx/media//fil.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size:cover;
}
#cuatro{
    background-image: url(http://www.libros.unam.mx/media//banner-distrito.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size:cover;
}
    /*.......................*/


/** Carousel **/
.jcarousel{
 overflow: hidden;       
    }
.jcarousel ul {
    width: 40000em;
    position: relative;
    list-style: none;
    margin: 0;
    padding: 0;
}


.jcarousel li {
    float: left;
    
    width: 100px;
}
/** Carousel Controls **/

.jcarousel-control-prev,
.jcarousel-control-next {
background-color: black;
    padding: 5px 10px;
    font-size: 20px;
    }
    .jcarousel-control-prev:hover,
    .jcarousel-control-next:hover{
        color: white;
        text-decoration: none;
    }
.jcarousel-control-prev {
    color: white;
    left: 15px;
}

.jcarousel-control-next {
    color: white;
    right: 15px;
}