.customers {
    font-family: Trebuchet MS, Arial, Helvetica, sans-serif;
    border-collapse: collapse;
    width: 100%;
}

.customers td, .customers thead td {
    border: 1px solid #000;
    padding: 8px;
}

.customers tr:nth-child(even) {
    background-color: #f2f2f2;
}

.customers thead td {
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    background-color: #fff;
    color: black;
}

.text_field {
    background: none;
    border: none;
    border-bottom: 1px solid green;
}



.btn {
    border: none;
    border-radius: 10px;
    background-color: inherit;
    padding: 12px 28px;
    font-size: 15px;
    cursor: pointer;
    display: inline-block;
}

/* Green */
.success {
    color: white;
    background-color: #4CAF50;
}

    .success:hover {
        background-color: #259429;
        color: white;
    }

/* Red */
.danger {
    color: white;
    background: #f44336;
}

    .danger:hover {
        background: #d31002;
        color: white;
    }

.flip, .flip:active, .flip:focus {
    background-color: #4caf50;
    background-repeat: no-repeat;
    border: none;
    cursor: pointer;
    overflow: hidden;
    outline: none;
    color: #fff;
    margin-bottom: 15px;
}
.display{
    display: none !important;
}

</style >