<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
body {
background: #c2c2c2;
font-size: 90%;
}
table {
background: #fff;
width: 200px;
border-collapse: separate;
margin: 15px;
height: 200px;
}
table td {
background: #83d483;
color: #fff;
padding: 15px;
border: 5px solid #fff;
/* default is vertical-align: middle; */
}
.center-table {
display: table;
height: 200px;
background: #fff;
width: 200px;
margin: 20px;
}
.center-table p {
display: table-cell;
margin: 0;
background: #83d483;
color: #fff;
padding: 20px;