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How to change Bootstrap default input focus glow style

Topic: Bootstrap / SassPrev|Next

Answer: Use the CSS box-shadow Property

By default, all the textual <input> elements, <textarea>, and <select> elements with the class .form-control highlighted in blue glow upon receiving the focus in Bootstrap.

However, you can modify this default focus glow or shadow styles by simply setting the CSS border-color and box-shadow property. Let's try out an example to see how it actually works:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Override Bootstrap Input Focus Styles</title>
<link rel="stylesheet" href="css/bootstrap.min.css">
<script src="js/jquery-3.5.1.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<style>
    .form-control:focus {
        border-color: #ff80ff;
        box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.075) inset, 0px 0px 8px rgba(255, 100, 255, 0.5);
    }
</style>
</head>
<body>
    <form>
        <div class="form-group">
            <label>Name</label>
            <input type="text" class="form-control" placeholder="Full Name">
        </div>
        <div class="form-group">
            <label>Address</label>
            <textarea class="form-control" rows="4" placeholder="Mailing Address"></textarea>
        </div>
         <div class="form-group">
            <label>Country</label>
            <select class="form-control">
                <option>Select</option>
                <option>India</option>
                <option>USA</option>
                <option>UK</option>
            </select>
        </div>
        <div class="checkbox">
            <label><input type="checkbox"> Agree with Terms and Conditions</label>
        </div>
        <button type="submit" class="btn btn-primary">Send</button>
    </form>
</body>
</html>

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