diff --git a/css/exercice.css b/css/exercice.css
index 864da22..57e0af2 100644
--- a/css/exercice.css
+++ b/css/exercice.css
@@ -1,28 +1,62 @@
-/* 1. exercice-flex */
-.exercice-flex .container {
-  display: flex;
-}
-
-/* 2. exercice-justify-1 */
-
-
-/* 3. exercice-justify-2 */
-
-
-/* 4. exercice-justify-3 */
-
-
-/* 5. exercice-align-1 */
-
-
-/* 6. exercice-align-2 */
-
-
-/* 7. exercice-align-3 */
-
-
-/* 8. exercice-all-1 */
-
-
-/* 9. exercice-all-2 */
-
+    /* 1. exercice-flex */
+    
+    .exercice-flex .container {
+        display: flex;
+    }
+    /* 2. exercice-justify-1 */
+    
+    .exercice-justify-1 .container {
+        display: flex;
+        justify-content: flex-end;
+    }
+    /* 3. exercice-justify-2 */
+    
+    .exercice-justify-2 .container-big {
+        display: flex;
+        flex-direction: column;
+        justify-content: center;
+    }
+    /* 4. exercice-justify-3 */
+    
+    .exercice-justify-3 .container {
+        display: flex;
+        flex-direction: row-reverse;
+        justify-content: space-around;
+    }
+    /* 5. exercice-align-1 */
+    
+    .exercice-align-1 .container {
+        display: flex;
+        flex-direction: row;
+        align-items: flex-end;
+    }
+    /* 6. exercice-align-2 */
+    
+    .exercice-align-2 .container {
+        display: flex;
+        flex-direction: row-reverse;
+        align-items: center;
+    }
+    /* 7. exercice-align-3 */
+    
+    .exercice-align-3 .container {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+    }
+    /* 8. exercice-all-1 */
+    
+    .exercice-all-1 .container-big {
+        display: flex;
+        flex-direction: row;
+        align-items: center;
+        justify-content: space-around;
+    }
+    /* 9. exercice-all-2 */
+    
+    .exercice-all-2 .container-big {
+        display: flex;
+        flex-direction: column-reverse;
+        align-items: center;
+        justify-content: center;
+    }
\ No newline at end of file