How can the issue of a form not displaying properly in PHP be resolved effectively?

Issue: The form may not be displaying properly in PHP due to errors in the HTML markup or CSS styling. To resolve this issue, ensure that the HTML form elements are correctly structured within the form tags and that the CSS styles are applied correctly to the form elements.

<form action="submit.php" method="post">
    <label for="name">Name:</label>
    <input type="text" id="name" name="name"><br><br>
    
    <label for="email">Email:</label>
    <input type="email" id="email" name="email"><br><br>
    
    <label for="message">Message:</label><br>
    <textarea id="message" name="message"></textarea><br><br>
    
    <input type="submit" value="Submit">
</form>