diff --git a/1-exercise-solutions/lesson-01/1a.html b/1-exercise-solutions/lesson-01/1a.html
index 5d2418b5..e07912a6 100644
--- a/1-exercise-solutions/lesson-01/1a.html
+++ b/1-exercise-solutions/lesson-01/1a.html
@@ -1 +1,3 @@
 <button>Click</button>
+<button type="button">Click</button>
+<button type="button">Submit</button>
diff --git a/1-exercise-solutions/lesson-02/2a.html b/1-exercise-solutions/lesson-02/2a.html
index af689367..ac2a52cb 100644
--- a/1-exercise-solutions/lesson-02/2a.html
+++ b/1-exercise-solutions/lesson-02/2a.html
@@ -6,6 +6,7 @@
     height: 40px;
     width: 110px;
     cursor: pointer;
+    border-radius: 8px;
   }
 </style>
 
diff --git a/1-exercise-solutions/lesson-03/3a.html b/1-exercise-solutions/lesson-03/3a.html
index e7349f93..bd40d666 100644
--- a/1-exercise-solutions/lesson-03/3a.html
+++ b/1-exercise-solutions/lesson-03/3a.html
@@ -5,6 +5,7 @@
     border: none;
     height: 40px;
     width: 110px;
+    border: 2px solid black;
     cursor: pointer;
     transition: opacity 0.15s;
   }