Customize Comment Form

comment-filed.php

comment_form( $args );

$args = array(
'fields' => apply_filters(
'comment_form_default_fields', array(
'author' =>'<p class="comment-form-author">' . '<input id="author" placeholder="Your Name (No Keywords)" name="author" type="text" value="' .
esc_attr( $commenter['comment_author'] ) . '" size="30"' . $aria_req . ' />'.
'<label for="author">' . __( 'Your Name' ) . '</label> ' .
( $req ? '<span class="required">*</span>' : '' )  .
'</p>'
,
'email'  => '<p class="comment-form-email">' . '<input id="email" placeholder="[email protected]" name="email" type="text" value="' . esc_attr(  $commenter['comment_author_email'] ) .
'" size="30"' . $aria_req . ' />'  .
'<label for="email">' . __( 'Your Email' ) . '</label> ' .
( $req ? '<span class="required">*</span>' : '' )
.
'</p>',
'url'    => '<p class="comment-form-url">' .
'<input id="url" name="url" placeholder="http://your-site-name.com" type="text" value="' . esc_attr( $commenter['comment_author_url'] ) . '" size="30" /> ' .
'<label for="url">' . __( 'Website', 'domainreference' ) . '</label>' .
           '</p>'
)
),
'comment_field' => '<p class="comment-form-comment">' .
'<label for="comment">' . __( 'Let us know what you have to say:' ) . '</label>' .
'<textarea id="comment" name="comment" placeholder="Express your thoughts, idea or write a feedback by clicking here & start an awesome comment" cols="45" rows="8" aria-required="true"></textarea>' .
'</p>',
    'comment_notes_after' => '',
    'title_reply' => '<div class="crunchify-text"> <h5>Please Post Your Comments & Reviews</h5></div>'
);