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<!DOCTYPE html>
<html>
<head>
<style> 
table, th, td {
  border: 1px solid black;
}
</style>
</head>
<body>
<h1>Change border-collapse with JavaScript</h1>
​
<p>Click the "Try it" button to change the border-collapse property of the TABLE element:</p>
​
<button onclick="myFunction()">Try it</button>
​
<table id="myTABLE">
  <tr>
    <th>Name</th>
    <th>Age</th>
  </tr>
  <tr>
    <td>Emil</td>
    <td>9</td>
  </tr>
  <tr>
    <td>Tobias</td>
    <td>7</td>
  </tr>
  <tr>
    <td>Linus</td>
    <td>2</td>
  </tr>
</table>
​
<script>
function myFunction() {
  document.getElementById("myTABLE").style.borderCollapse = "collapse";
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/cssref/tryit.asp?filename=trycss_js_border-collapse by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 13:59:31 GMT -->
</html>
​
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