Sticky Table Data

by bailey125_

HTML

<!DOCTYPE html>
<html>

  <body>
    <table border="1">
      <thead>
        <tr class="blue">
          <th>Group 1</th>
          <th>Group 2</th>
          <th>DataCol 1</th>
          <th>DataCol 2</th>
          <th>DataCol 3</th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td rowspan="30"><p class="sticky">SRVEType1</p></td>
          <td rowspan="6"><p class="sticky">SRVE101</p></td>
          <td colspan="3">SomeData</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td rowspan="6"><p class="sticky">SRVE102</p></td>
          <td colspan="3">SomeData</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td rowspan="6"><p class="sticky">SRVE103</p></td>
          <td colspan="3">SomeData</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
          <td>-----</td>
          <td>-----</td>
        </tr>
        <tr>
          <td>-----</td>
       ...

CSS

body {
  margin: 0;
  padding: 6rem;
  height: 2500px;
}

table {
  margin: auto;
  text-align: left;
  position: relative;
  border-collapse: collapse;
}
th, td {
  padding: 0rem;
  position: sticky;
  width: 120px;
  vertical-align: top;
  text-align: center;
}
th {
  background: white;
  text-align: center;
  vertical-align: middle;
  top: 0;
}
tr.blue th {
  background: blue;
  color: white;
  height: 30px;
  opacity: 1;
  z-index: 99;
}
p.sticky  {
  margin: 0;
  position: sticky;
  top: 32px;
}
td {
  height: 20px;
}