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How to Change Font Weight of Div in JavaScript?

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JavaScript – Change the Font Weight of Div

To change the font weight of a div using JavaScript, get reference to this div element, and assign required font weight value to the element.style.fontWeight property.


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
</head> 
<body>
    <h2>Change Font Weight for Div in JavaScript</h2>
    <div id="myDiv">
        <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.fontWeight = "600";
    }
    </script>

</body>
</html>