Update index.html

index.html

@@ -244,13 +244,13 @@
             <div class="input-group">
               <textarea type="text" id="user-text" style="height: 60px; padding: 10px 150px 5px 10px;" placeholder="Type in your message or press record button to speak..."></textarea>
               <div id="input-audio" class="input-group-append p-2">
-                <button id="delete_button" class="mb-2">
+                <button id="delete_button" class="mb-2 p-2">
                 <img id="delete_img" class="mb-2" src="images/error.png" alt="Del">
                 </button>
-                <button id="start_button" class="mb-2">
+                <button id="start_button" class="mb-2 p-2">
                 <img id="start_img" class="mb-2" src="images/microphone.png" alt="Record">
                 </button>
-                <button id="send_button" class="mb-2">
+                <button id="send_button" class="mb-2 p-2">
                 <img id="send_text_img" class="mb-2" src="images/paper-plane.png" alt="Start">
                 </button>
               </div>