.form-control,
.form-control-sm,
.input-group-text,
.btn,
.btn-sm,
.card {
    border-radius: 0;
}

.input-group .input-group-text {
    padding: .375rem .75;
    background-color: transparent;
    border-right: 0;
}

.input-group .form-control,
.input-group .form-control-sm {
    border-left: 0;
    padding-left: 0;
}

.input-group .form-control:focus,
.input-group .form-control-sm:focus {
    border-color: #ced4da;
}