CodePen Embed - RwLKyxz

<form>

  <label for="datemax">Chọn ngày trước 1980-01-01:</label>

  <input type="date" id="datemax" name="datemax" max="1979-12-31"><br><br>

  <label for="datemin">Chọn ngày sau 2000-01-01:</label>

  <input type="date" id="datemin" name="datemin" min="2000-01-02">

</form>

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