How do I change the CSS class of a textbox using JavaScript?

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You can change the CSS class of a textbox (or any other HTML element) using JavaScript by manipulating the classList property. Here's an example:<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0">...
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You can change the CSS class of a textbox (or any other HTML element) using JavaScript by manipulating the classList property. Here's an example:<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <style> .originalClass { /* Your original styles here */ border: 1px solid #ccc; padding: 5px; } .newClass { /* Your new styles here */ border: 2px solid #ff0000; /* Red border as an example */ padding: 10px; } </style> <title>Change CSS Class Example</title></head><body> <input type="text" id="myTextbox" class="originalClass"> <script> // Function to change the class function changeClass() { var textbox = document.getElementById("myTextbox"); // Remove the current class textbox.classList.remove("originalClass"); // Add the new class textbox.classList.add("newClass"); } // Call the function to change the class (you can trigger this in response to an event) changeClass(); </script></body></html> In this example, we have an input textbox with an initial class of "originalClass." The JavaScript function changeClass is defined to remove the original class and add a new class ("newClass"). You can trigger this function in response to an event such as a button click, form submission, or any other user action. Make sure to replace the styles and class names with your own as needed. read less
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