WP PLUGIN CSSセレクタの修正

・アンダーバーからハイフンに変更

template/setting_post_custom_field.php

@@ -1,6 +1,6 @@
 <div class="order_setting_custom_field_box">
 	<?php if ( isset( $this->order_field ) && count( $this->order_field ) > 0 ): ?>
-        <dl class="apop_setting_list_dd">
+        <dl class="apop-setting-list-dd">
 			<?php foreach ( $this->order_field as $type => $items ): ?>
                 <dt><?php echo esc_html( $this->labels[ $type ] ); ?></dt>
                 <dd>