diff --git a/11_bootstrap/about.html b/11_bootstrap/about.html
index 5a09be9..76cb7ec 100644
--- a/11_bootstrap/about.html
+++ b/11_bootstrap/about.html
@@ -11,7 +11,7 @@
 <body>    
     <div class="dropdown position-fixed bottom-0 end-0 mb-3 me-3 bd-mode-toggle">
         <button class="btn btn-bd-primary py-2 dropdown-toggle d-flex align-items-center"
-                id="bd-theme"                
+                id="bs-theme"                
                 type="button"
                 aria-expanded="false"
                 data-bs-toggle="dropdown"
@@ -19,7 +19,7 @@
         >
         Dark/Light</button>
         <ul class="dropdown-menu dropdown-menu-end shadow"
-            aria-labelledby="bd-theme-text">
+            aria-labelledby="bs-theme-text">
             <li>
                 <button type="button" 
                         class="dropdown-item d-flex align-items-center" 
diff --git a/11_bootstrap/contact.html b/11_bootstrap/contact.html
index 06c5e4c..7ebe28b 100644
--- a/11_bootstrap/contact.html
+++ b/11_bootstrap/contact.html
@@ -11,7 +11,7 @@
 <body>
     <div class="dropdown position-fixed bottom-0 end-0 mb-3 me-3 bd-mode-toggle">
        <button class="btn btn-bd-primary py-2 dropdown-toggle d-flex align-items-center"
-               id="bd-theme"                
+               id="bs-theme"                
                type="button"
                aria-expanded="false"
                data-bs-toggle="dropdown"
@@ -19,7 +19,7 @@
        >
        Dark/Light</button>
        <ul class="dropdown-menu dropdown-menu-end shadow"
-           aria-labelledby="bd-theme-text">
+           aria-labelledby="bs-theme-text">
            <li>
                <button type="button" 
                        class="dropdown-item d-flex align-items-center" 
diff --git a/11_bootstrap/galery.html b/11_bootstrap/galery.html
index 60032d3..4108d9c 100644
--- a/11_bootstrap/galery.html
+++ b/11_bootstrap/galery.html
@@ -11,7 +11,7 @@
 <body>
     <div class="dropdown position-fixed bottom-0 end-0 mb-3 me-3 bd-mode-toggle">
        <button class="btn btn-bd-primary py-2 dropdown-toggle d-flex align-items-center"
-               id="bd-theme"                
+               id="bs-theme"                
                type="button"
                aria-expanded="false"
                data-bs-toggle="dropdown"
@@ -19,7 +19,7 @@
        >
        Dark/Light</button>
        <ul class="dropdown-menu dropdown-menu-end shadow"
-           aria-labelledby="bd-theme-text">
+           aria-labelledby="bs-theme-text">
            <li>
                <button type="button" 
                        class="dropdown-item d-flex align-items-center" 
diff --git a/11_bootstrap/index.html b/11_bootstrap/index.html
index 96af263..50fcc32 100644
--- a/11_bootstrap/index.html
+++ b/11_bootstrap/index.html
@@ -11,7 +11,7 @@
 <body>
     <div class="dropdown position-fixed bottom-0 end-0 mb-3 me-3 bd-mode-toggle">
        <button class="btn btn-bd-primary py-2 dropdown-toggle d-flex align-items-center"
-               id="bd-theme"                
+               id="bs-theme"                
                type="button"
                aria-expanded="false"
                data-bs-toggle="dropdown"
@@ -19,7 +19,7 @@
        >
        Dark/Light</button>
        <ul class="dropdown-menu dropdown-menu-end shadow"
-           aria-labelledby="bd-theme-text">
+           aria-labelledby="bs-theme-text">
            <li>
                <button type="button" 
                        class="dropdown-item d-flex align-items-center" 
diff --git a/11_bootstrap/template.html b/11_bootstrap/template.html
index e47effd..9801e00 100644
--- a/11_bootstrap/template.html
+++ b/11_bootstrap/template.html
@@ -18,7 +18,7 @@
 <body>
      <div class="dropdown position-fixed bottom-0 end-0 mb-3 me-3 bd-mode-toggle">
         <button class="btn btn-bd-primary py-2 dropdown-toggle d-flex align-items-center"
-                id="bd-theme"                
+                id="bs-theme"                
                 type="button"
                 aria-expanded="false"
                 data-bs-toggle="dropdown"
@@ -26,7 +26,7 @@
         >
         Dark/Light</button>
         <ul class="dropdown-menu dropdown-menu-end shadow"
-            aria-labelledby="bd-theme-text">
+            aria-labelledby="bs-theme-text">
             <li>
                 <button type="button" 
                         class="dropdown-item d-flex align-items-center" 
