@{
    ViewData["Title"] = "Report";
}
<div class="text-center">
    <h2 class="display-4">Отчёты</h2>
</div>
<form method="post">
    <div class="align-content-center row mb-3">
        <div class="col-sm-auto">
            <label for="startDate">С:</label>
        </div>
        <div class="col-3">
            <input name="startDate" id="startDate" class="form-control" type="date" />
        </div>
        <div class="col-sm-auto">
            <label for="endDate">По:</label>
        </div>
        <div class="col-3">
            <input name="endDate" id="endDate" class="form-control" type="date" />
        </div>
        <div class="col-2">
            <input type="submit" name="getReport" class="btn btn-primary" value="Сформировать отчет" />
        </div>
        <div class="col-3">
            <input type="submit" name="sendToMail" class="btn btn-primary" value="Отправить на почту" />
        </div>
    </div>
</form>