body, form {
    background-color:#F6F6F6;
}

/* En azul */
.alert-info {
    /*background-color:#E8E8E8;*/
    background-color:#d9edf7;
    border-radius:4px;
    border:1px solid #31708f;
}

.miNav {
    margin-left:1%;
    margin-right:1%;
}

/* En verde
.alert-info {
    background-image:none;
    background-color:#5cb85c;
    border-radius:4px;
    border:1px solid #3e8f3e;
    color:#fff;
}
*/