.table-striped > tbody > tr:nth-child(odd) > td,
.table-striped > tbody > tr:nth-child(odd) > th {
    background-color: #FAFFFF;
    
}

body {
    background-color: #dbf0f0
}

div .principal {
    margin-top: 5px;
    padding: 10px;
    background-color: white;
}