diff --git a/docs/index.html b/docs/index.html
index 203d52714..4f30ee6f5 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -21,7 +21,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/index.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/index.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/index.html">한국어</a></li>
diff --git a/docs/ja/index.html b/docs/ja/index.html
index e7e97e9d1..24c1872f0 100644
--- a/docs/ja/index.html
+++ b/docs/ja/index.html
@@ -21,7 +21,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/index.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/index.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/index.html">한국어</a></li>
diff --git a/docs/ja/today.html b/docs/ja/today.html
index 7547a531c..a16f40cbe 100644
--- a/docs/ja/today.html
+++ b/docs/ja/today.html
@@ -25,7 +25,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/today.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/today.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/today.html">한국어</a></li>
diff --git a/docs/ko/index.html b/docs/ko/index.html
index df159b701..75044b251 100644
--- a/docs/ko/index.html
+++ b/docs/ko/index.html
@@ -21,7 +21,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/index.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/index.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/index.html">한국어</a></li>
diff --git a/docs/ko/today.html b/docs/ko/today.html
index b942e9c99..2b3e5de3e 100644
--- a/docs/ko/today.html
+++ b/docs/ko/today.html
@@ -25,7 +25,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/today.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/today.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/today.html">한국어</a></li>
diff --git a/docs/ru/index.html b/docs/ru/index.html
index 3b1773042..9ce925e64 100644
--- a/docs/ru/index.html
+++ b/docs/ru/index.html
@@ -21,7 +21,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/index.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/index.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/index.html">한국어</a></li>
diff --git a/docs/ru/today.html b/docs/ru/today.html
index 2ac43fc72..0138a0e71 100644
--- a/docs/ru/today.html
+++ b/docs/ru/today.html
@@ -25,7 +25,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/today.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/today.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/today.html">한국어</a></li>
diff --git a/docs/style.css b/docs/style.css
index ecc92c9eb..59f70c4d6 100644
--- a/docs/style.css
+++ b/docs/style.css
@@ -1667,6 +1667,9 @@ details.collapse summary::-webkit-details-marker {
 .collapse {
   visibility: collapse;
 }
+.z-50 {
+  z-index: 50;
+}
 .z-\[1\] {
   z-index: 1;
 }
diff --git a/docs/today.html b/docs/today.html
index c64cabd51..cc3f05ce1 100644
--- a/docs/today.html
+++ b/docs/today.html
@@ -25,7 +25,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/today.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/today.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/today.html">한국어</a></li>
diff --git a/docs/zh/index.html b/docs/zh/index.html
index b68bf5528..dd0c57d1b 100644
--- a/docs/zh/index.html
+++ b/docs/zh/index.html
@@ -21,7 +21,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/index.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/index.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/index.html">한국어</a></li>
diff --git a/docs/zh/today.html b/docs/zh/today.html
index 65f6ba5c3..97448e9a1 100644
--- a/docs/zh/today.html
+++ b/docs/zh/today.html
@@ -25,7 +25,7 @@
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h7" />
             </svg>
           </div>
-          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-[1] mt-3 w-52 p-2 shadow">
+          <ul tabindex="0" class="menu menu-sm dropdown-content bg-base-100 rounded-box z-50 mt-3 w-52 p-2 shadow">
             <li><a href="https://fabrice404.github.io/olympics-calendar/today.html">English</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ja/today.html">日本語</a></li>
             <li><a href="https://fabrice404.github.io/olympics-calendar/ko/today.html">한국어</a></li>