input[type="date"] {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.input-group {
    flex: 1;
    min-width: 150px;
}

.thin {
    align-content: center;
    height: 75%;
    width: 80px;
}