.data-dialog select[readonly] {
    background-color: #e9ecef;
}

.data-dialog input[readonly]::placeholder,
.data-dialog textarea[readonly]::placeholder {
    color: transparent;
}

.data-dialog select[readonly] option, .data-dialog select[readonly] optgroup {
    display: none;
}

.data-dialog div.custom-checkbox[readonly] {
    opacity: 70%;
}