diff --git a/home/index.html b/home/index.html
index f4019b2..466edb5 100644
--- a/home/index.html
+++ b/home/index.html
@@ -124,16 +124,16 @@
         <section id="home-class_content" class="wrapper">
             <h2 class="section-title scroll">授業内容について</h2>
             <div class="grid">   
-                <a class="class_content-item scroll" href="../2022-activities/index.html#class11">
+                <a class="class_content-item scroll" href="../2022-activities/index.html#class12">
                     <div class="item fadein">
-                    <img class="fadein" src="../2022-activities/img/0820-1.jpg" alt="">
+                    <img class="fadein" src="../2022-activities/img/0820-1.JPG" alt="../class_content/index.html">
                     <div class="item-content">
                         <p class="item-cat">class content</p>
                         <p class="item-text">8月20日 中間発表会</p>
                         <p class="item-date">2022.08.20</p>
                     </div>
                     </div>
-                <a class="class_content-item scroll" href="../2022-activities/index.html#class10">
+                <a class="class_content-item scroll" href="../2022-activities/index.html#class11">
                     <div class="item fadein">
                       <img class="fadein" src="../2022-activities/img/0809-1.png" alt="../class_content/index.html">
                       <div class="item-content">
@@ -143,7 +143,7 @@
                       </div>
                     </div>
                 </a> 
-              <a class="class_content-item scroll" href="../2022-activities/index.html#class9">
+              <a class="class_content-item scroll" href="../2022-activities/index.html#class10">
                   <div class="item fadein">
                     <img class="fadein" src="../2022-activities/img/0802-2.png" alt="../class_content/index.html">
                     <div class="item-content">