app/assets/stylesheets/_data_grid.scss
.data-grid {
table thead th {
padding: 0 !important;
white-space: nowrap;
.btn {
border: none;
border-radius: 0;
padding-right: 0.25rem;
padding-left: 0.375rem;
}
.form-control, .form-select {
border: none;
border-radius: 0;
border-left: var(--bs-border-color) solid var(--bs-border-width);
padding: 0.375rem 0.375rem 0.375rem 0.25rem;
min-width: 200px;
}
}
}