.btn-create-code {
    margin-top: 50px;
}

.btn-update-code {
    margin-top: 50px;
}

.invalid-feedback {
    display: block;
}

.valid-feedback {
    display: block;
}

/*
CSS for sticky table
*/
table .thead_top_sticky{
    position: sticky;
    top: 0;
    z-index: 2;
}

table .th_left_sticky{
    z-index: 1;
    position: sticky;
    left: 0;
}