Fix Height of Html Code

Question

Hi

  I want to Fix Height of the below code

<div class="row">
<div class="col-md-3 col-xl-3">
    <div class="card">
        <div class="card-body border-top-0">
            <div class="d-sm-flex flex-sm-wrap mb-3 mt-1">
                <div class="font-weight-semibold">Coordinator:</div>
                <div class="ml-sm-auto mt-2 mt-sm-0">
                    <asp:Literal ID="ltrlDeveloper" runat="server"></asp:Literal>
                </div>
            </div>

            <div class="d-sm-flex flex-sm-wrap mb-3">
                <div class="font-weight-semibold">Phone:</div>
                <div class="ml-sm-auto mt-2 mt-sm-0">
                    <asp:Literal ID="ltrlPhone" runat="server"></asp:Literal>
                </div>
            </div>

            <div class="d-sm-flex flex-sm-wrap mb-3">
                <div class="font-weight-semibold">Date of Joining:</div>
                <div class="ml-sm-auto mt-2 mt-sm-0">
                    <asp:Literal ID="ltrlDOJ" runat="server"></asp:Literal>
                </div>
            </div>

            <div class="d-sm-flex flex-sm-wrap mb-3">
                <div class="font-weight-semibold">Email:</div>
                <div class="ml-sm-auto mt-2 mt-sm-0">
                    <asp:Literal ID="ltrlEmail" runat="server"></asp:Literal>
                </div>
            </div>
        </div>
    </div>
</div>

Thanks