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How to Change Border Style of Div in JavaScript?

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JavaScript – Change the Border Style of Div

To change the border style of a div using JavaScript, get reference to the element, and assign required border style value to the element.style.borderStyle property.

borderStyle property takes one of the following values.

  • dotted
  • dashed
  • solid
  • double
  • groove
  • ridge
  • inset
  • outset
  • none
  • hidden

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
</head> 
<body>
    <h2>Change Border Style of Div in JavaScript</h2>
    <div id="myDiv" style="border:2px solid green">
        <p>This is a paragraph in Div.</p>
        <span>This is a span in Div.</span>
    </div>
    <br>
    <button type="button" onclick="changeStyle()">Click Me</button>
    <script>
    function changeStyle(){
        var element = document.getElementById("myDiv");
        element.style.borderStyle = "dashed";
    }
    </script>
</body>
</html>