--- /dev/null
+<?php
+$class = 'message';
+if (!empty($params['class'])) {
+ $class .= ' ' . $params['class'];
+}
+if (!isset($params['escape']) || $params['escape'] !== false) {
+ $message = h($message);
+}
+?>
+<div class="<?= h($class) ?>" onclick="this.classList.add('hidden');"><?= $message ?></div>