<!-- First card -->
<div class="flexbox-centering">
  <div class="child">
    <div DefaultButton="btnPatientSearch">
      <div class="input-card" style="margin-top: 20px;">
        <div class="input-title">
          Hospital Number
        </div>
        <div class="row input-box">
          <input Class="form-control" runat="server" ID="txt_HospNumber" placeholder="Enter information" autocomplete="off"></input>
        </div>
        <input id="toggle" type="checkbox" style="display:none">
        <label class="label-search" for="toggle">Show more search options</label>
        <div id="expand">
          <section>
            <div class="row">
              <div class="col-md-4">
                <div class="input-expand-title">
                  NHS Number
                </div>
              </div>
              <div class="col-md-8">
                <input class="form-control" runat="server" ID="txtNHSNumber" placeholder="Enter information" autocomplete="off"></input>
              </div>
            </div>
            <div class="row">
              <div class="col-md-4">
                <div class="input-expand-title">
                  Forename
                </div>
              </div>
              <div class="col-md-8">
                <input class="form-control" ID="txt_Forename" runat="server" placeholder="Enter information" autocomplete="off"></input>
              </div>
            </div>
            <div class="row">
              <div class="col-md-4">
                <div class="input-expand-title">
                  Surname
                </div>
              </div>
              <div class="col-md-8">
                <input class="form-control" ID="txt_Surname" runat="server" placeholder="Enter information" autocomplete="off"></input>
              </div>
            </div>
            <div class="row">
              <div class="col-md-4">
                <div class="input-expand-title">
                  Date of Birth
                </div>
              </div>
              <div class="col-md-8">
                <input class="form-control" ID="txt_DOB" runat="server" placeholder="Enter information" autocomplete="off"></input>
              </div>
            </div>
          </section>
        </div>
        <button runat="server" Style="float: right; color: #fff;" Class="btn btn-primary" ValidationGroup="patientsearch" Text="Search" OnClick="DisplayLoading();">Search</button>
      </div>
    </div>
  </div>
</div>

<!-- Second card -->
<div class="flexbox-centering">
  <div class="child">
    <div class="input-card" style="margin-top: 20px;">
      <p>ASP.NET code</p>
      <textarea class="form-control" style="height:150px">
<div class="flexbox-centering">
<div class="child">
<asp:Panel runat="server" DefaultButton="btnPatientSearch">
<div class="input-card" style="margin-top: 20px;">
<div class="input-title">
Hospital Number
</div>
<script type="text/javascript">
</script>
<div class="row input-box">
<asp:TextBox CssClass="form-control" runat="server" ID="txt_HospNumber" placeholder="Enter information" autocomplete="off"></asp:TextBox>
</div>
<input id="toggle" type="checkbox">
<label class="label-search" for="toggle">Show more search options</label>
<div id="expand">
<section>
<div class="row">
<div class="col-md-4">
<div class="input-expand-title">
NHS Number
</div>
</div>
<div class="col-md-8">
<asp:TextBox CssClass="form-control" runat="server" ID="txtNHSNumber" placeholder="Enter information" autocomplete="off"></asp:TextBox>
</div>
</div>
<div class="row">
<div class="col-md-4">
<div class="input-expand-title">
Forename
</div>
</div>
<div class="col-md-8">
<asp:TextBox CssClass="form-control" ID="txt_Forename" runat="server" placeholder="Enter information" autocomplete="off"></asp:TextBox>
</div>
</div>
<div class="row">
<div class="col-md-4">
<div class="input-expand-title">
Surname
</div>
</div>
<div class="col-md-8">
<asp:TextBox CssClass="form-control" ID="txt_Surname" runat="server" placeholder="Enter information" autocomplete="off"></asp:TextBox>
</div>
</div>
<div class="row">
<div class="col-md-4">
<div class="input-expand-title">
Date of Birth
</div>
</div>
<div class="col-md-8">
<asp:TextBox CssClass="form-control" ID="txt_DOB" runat="server" placeholder="Enter information" autocomplete="off"></asp:TextBox>
</div>
</div>
</section>
</div>
<asp:CompareValidator ID="CompareValidator1" runat="server" Display="Dynamic" Type="Date" Operator="DataTypeCheck" ControlToValidate="txt_DOB" ErrorMessage="*Please enter a valid date DD/MM/YYYY." ForeColor="Red"></asp:CompareValidator>
<ajaxToolkit:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="txt_DOB" Format="dd/MM/yyyy"></ajaxToolkit:CalendarExtender>
<asp:Button runat="server" ID="btnPatientSearch" Style="float: right; color: #fff;" CssClass="btn btn-primary form-control" ValidationGroup="patientsearch" Text="Search" OnClientClick="DisplayLoading();" OnClick="btn_PatientSearch_click"></asp:Button>
<ajaxToolkit:AnimationExtender ID="AnimationExtender1" TargetControlID="btnPatientSearch" runat="server">
<Animations><OnClick><FadeOut Duration="0.1" Fps="20" minimumOpacity=".6" /></OnClick></Animations>
</ajaxToolkit:AnimationExtender>
<asp:CustomValidator ValidationGroup="patientsearch" Display="Dynamic" class="btn btn-danger btn-sm tooltip-error" ID="SearchforPatientValidator" runat="server" ErrorMessage="CustomValidator" OnServerValidate="CustomValidator_ServerValidate" ForeColor="white"></asp:CustomValidator>
</div>
<script type="text/javascript">
function DisplayLoading() {
document.getElementById('<%=btnPatientSearch.ClientID%>').value = 'Searching...';
}
</script>
</asp:Panel>
</div>
</div>
        </textarea>
      <button class="btn btn-link" style="float:right;">Copy Code</button>
    </div>
  </div>
</div>

<div id="watermark">
  Oliver Brennan
</div>
body {
  background: #141e30 no-repeat center center fixed;
  background: -webkit-linear-gradient(to top, #2980b9, #2c3e50) no-repeat center
    center fixed;
  background: linear-gradient(to top, #2980b9, #2c3e50) no-repeat center center
    fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

#watermark {
  font-size: 1.2em;
  position: fixed;
  bottom: 0px;
  right: 7px;
  color: #fff;
  opacity: 0.1;
  pointer-events: none;
}

.flexbox-centering {
  display: flex;
  justify-content: center;
  align-items: center;
}
.child {
  padding: 15px;
}
.input-card {
  padding: 20px 30px 50px 30px;
  width: 450px;
  background: #fff;
  box-shadow: rgba(0, 0, 0, 0.5) 0px 0px 15px;
  border: 1px solid #7f928c;
  border-radius: 8px;
}

.input-title {
  font-size: 1.1em;
  margin-left: -15px;
  font-weight: 700;
}

.input-box {
  margin-bottom: 15px;
}
#expand {
  height: 0px;
  overflow: hidden;
  transition: height 0.5s;
}

section {
  padding: 0 20px;
}

#toggle:checked ~ #expand {
  height: 160px;
}

#toggle:checked ~ label::before {
  content: "-";
}

.input-expand-title {
  line-height: 3;
  font-size: 0.9em;
  float: right;
  font-weight: bold;
}

.label-search {
  display: block;
  padding: 0.5em;
  border-bottom: 1px solid #ccc;
  color: #666;
}

.label-search:hover {
  color: #000;
}

.label-search::before {
  font-family: Consolas, monaco, monospace;
  font-weight: bold;
  font-size: 15px;
  content: "+";
  display: inline-block;
  width: 22px;
  height: 22px;
  margin-right: 3px;
  padding-left: 7px;
  background: radial-gradient(ellipse at center, #ccc 50%, transparent 50%);
}
$("button").click(function() {
  $("textarea").select();
  document.execCommand("copy");
});

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js