.loader {
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: url('../img/loading.gif') 50% 50% no-repeat rgb(249,249,249);
    opacity: .8;
}
td.details-control {
    background: url('../img/details_open.png') no-repeat center center;
    cursor: pointer;

}
tr.shown td.details-control {
    background: url('../img/details_close.png') no-repeat center center;
}
.invalido{
    border:1px solid #F44336;
    color: white;
    background: #F44336;
    box-shadow: 0 0 1em #F44336;
}
.letra-tabla{
    font-size: 0.8em;
}
#recetaForm fieldset:not(:first-of-type) {
    display: none;
}