template.html

<div style="width:800px; height:600px; padding:20px; text-align:center; border: 10px solid #787878">
<div style="width:750px; height:550px; padding:20px; text-align:center; border: 5px solid #787878">
       <span style="font-size:50px; font-weight:bold">Certificate of Completion</span>
       <br><br>
       <span style="font-size:25px"><i>This is to certify that</i></span>
       <br><br>
       <span style="font-size:30px"><b>{{ service }}</b></span><br/><br/>
       <span style="font-size:25px"><i>has completed the services for data engineering & infrastructure for </i></span> <br/><br/>
       <span style="font-size:30px">{{ client }}</span> <br/><br/>
       <span style="font-size:20px">with a rate of of <b> {{ rate }}</b></span> <br/><br/><br/><br/>
       <span style="font-size:25px"><i>dated</i></span><br>
      {{ date }}
</div>
</div>