diff --git a/public/index.html b/public/index.html
index 8f32e46..c618b11 100644
--- a/public/index.html
+++ b/public/index.html
@@ -31,13 +31,13 @@
 {% block content %}
             <div class="inner">
                 <div class="flex-vertical">
-                    <p class="text-highlight big-text" style="padding-bottom: 0px; margin-bottom: 0px; text-box: trim-both cap alphabetic;">NERCONE</p>
+                    <p id="big-text" class="text-highlight big-text" style="padding-bottom: 0px; margin-bottom: 0px; text-box: trim-both cap alphabetic;">NERCONE</p>
                     <p class="text-bold" style="padding-top: 0px; margin-top: 0px; text-box: trim-both cap alphabetic;">ようこそ・Welcome・<span class="text-sc">欢迎</span>・<span class="text-tc">歡迎</span>・<span class="text-kr">환영해요</span></p>
                 </div>
             </div>
             <script>
                 (() => {
-                    const el = document.getElementsByClassName('big-text');
+                    const el = document.getElementById('big-text');
                     if (!el) return;
                     let tapCount = 0, tapTimer = null, lastTouch = 0;