diff --git a/frontends/etiquette_flask/templates/login.html b/frontends/etiquette_flask/templates/login.html
index 293f394..a8e5ff3 100644
--- a/frontends/etiquette_flask/templates/login.html
+++ b/frontends/etiquette_flask/templates/login.html
@@ -75,14 +75,14 @@ button
                 <span>Log in</span>
                 <input type="text" id="login_input_username" name="username" placeholder="username" autofocus>
                 <input type="password" id="login_input_password" name="password" placeholder="password">
-                <button type="submit" id="login_submit_button" onclick="login_form()">Log in</button>
+                <button type="submit" id="login_submit_button" class="green_button" onclick="login_form()">Log in</button>
             </div>
             <div id="register_form" action="/register" method="post">
                 <span>Register</span>
                 <input type="text" id="register_input_username" name="username" placeholder="username (at least {{min_username_length}})">
                 <input type="password" id="register_input_password_1" name="password_1" placeholder="password (at least {{min_password_length}})">
                 <input type="password" id="register_input_password_2" name="password_2" placeholder="password again">
-                <button type="submit" id="register_input_button" onclick="register_form()">Register</button>
+                <button type="submit" id="register_input_button" class="green_button" onclick="register_form()">Register</button>
             </div>
         </div>
         <div id="message_area">