position:sticky inside table cell

HTML

<table class="parent-table">
  <tr>
    <td class="position-first-child-sticky">
      <div>
        I'm first-child-sticky
      </div>
    </td>
  </tr>
</table>

CSS

.parent-table{
  height:1000px;
  width:200px;
}
.parent-table td{
  vertical-align:top;
}
.position-first-child-sticky{position:relative;}
.position-first-child-sticky > :first-child{
  position:-webkit-sticky;
  position:sticky;
  top:0;
  background:rgba(255,220,200,0.5);
 }

JavaScript

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position:sticky inside table cell

HTML

CSS

JavaScript

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