/* CLASES COMPATIBILIDAD BOOTSTRAP 4 EN BOOTSTRAP 3 */

/* Márgenes */
.mb-1{ margin-bottom: 0.5em; }
.mb-2{ margin-bottom: 1em; }
.mb-3{ margin-bottom: 1.5em; }
.mr-2{ margin-right: 1em; }
.my-2{ margin-bottom: 1em; margin-top: 1em;}

/* Botones */
.btn-light {
    background-color: #DDDDDD;
    border-color: #DDDDDD;
    color: #333;
}

.btn-secondary {
    background-color: #666;
    border-color: #666;
    color: #FFF;
}

.btn-secondary:hover {
    background-color: #777;
    border-color: #777;
    color: #FFF;
}