.fondoventanaprincipal
{
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: 0;
    padding: 0;
    background: #000000;
    opacity: .15;
    filter: alpha(opacity=15);
    -moz-opacity: .15;
    z-index: 101;
}

.cuadrodialogo
{
    float:none;
    border: 8px solid silver;
    width: 450px;
    background-color: Silver;
    position: fixed;
    top: 38%;
    left: 33%;
    z-index: 102;
}

.Advertencia
{
    height: 30px;
    text-align: center;
    font-size: 20px;
    font-family: Calibri;
    font-weight: bold;
}

.tituloAdvertenca
{
    color: #FFFFFF;
    text-align: center;
}

.Mensajes
{
    color: Silver;
    background-color: #FFFFFF;
    text-align: center;
    width: 434px;
    font-size: 17px;
    font-family: Calibri;
    font-weight: bold;
}

.espacios
{
    height: 15px;
    background-color: #FFFFFF;
}

.cuadroboton
{
    float:left;
    width: 144px;
    height: 37px;
    padding-top: 10px;
    background-color: #FFFFFF;
    text-align: center;
}

.cuadroboton2
{
    float:left;
    width: 146px;
    height: 37px;
    padding-top: 10px;
    background-color: #FFFFFF;
    text-align: center;
}

.botones
{
    color: #FFFFFF;
    font-weight: bold;
    background-color: Silver;
}