Update index.html

Author: minirang

index.html

@@ -54,7 +54,7 @@ <h3>프로젝트</h3>
             </div>
         </div>
     </section>
-    <img src="img/msg.png" style="width: 700px; display: block; margin: 0 auto;" data-aos="zoom-in">
+    <img src="img/msg.png" data-aos="zoom-in" class="msg">
     <section id="rules">
         <div class="container" data-aos="fade-up">
             <h2>방 운영 수칙</h2>