diff --git a/backend/djangoauthapi1/settings.py b/backend/djangoauthapi1/settings.py
index 40e17376..291c35cf 100644
--- a/backend/djangoauthapi1/settings.py
+++ b/backend/djangoauthapi1/settings.py
@@ -160,7 +160,5 @@
 CORS_ALLOWED_ORIGINS = [
     "http://localhost:3000",
     "http://127.0.0.1:3000",
-    "https://vercel.com/vitor-gabriels-projects-ac951d48/2023-2-kepler/A5sJuK4mBabtGRs4rXMDuBEf3mBm",
-
 
 ]
diff --git a/frontend/src/pages/Materias.js b/frontend/src/pages/Materias.js
index e3c28460..f13150e4 100644
--- a/frontend/src/pages/Materias.js
+++ b/frontend/src/pages/Materias.js
@@ -241,7 +241,7 @@ function Materias() {
               >
                 {isSubmitting ? 'Enviando...' : 'Confirmar Seleção'}
               </button>
-              <button onClick={handleCancelSelectionTemp} className="cancel-button">
+              <button onClick={handleCancelSelectionTemp} className="cancel-button2">
                 Cancelar Seleção
               </button>
             </div>
diff --git a/frontend/src/styleheets/Contact.css b/frontend/src/styleheets/Contact.css
index 32206012..07db674d 100644
--- a/frontend/src/styleheets/Contact.css
+++ b/frontend/src/styleheets/Contact.css
@@ -8,7 +8,7 @@
 }
 
 .animated-table-cell > a {
-  color: black;
+  color: rgb(255, 255, 255);
   text-decoration: none;
   text-align: center;
   display: block;
diff --git a/frontend/src/styleheets/Materias.css b/frontend/src/styleheets/Materias.css
index 894d55d3..d1f49aeb 100644
--- a/frontend/src/styleheets/Materias.css
+++ b/frontend/src/styleheets/Materias.css
@@ -279,6 +279,17 @@ select:focus + .focus {
     display: flex; /* Adiciona display flex para centralizar verticalmente */
     align-items: center; /* Centraliza verticalmente */
   }
+
+  button, .cancel-button2 {
+    margin: 5px auto; /* Adiciona margem automática para centralizar horizontalmente */
+    padding: 10px 15px;
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+    transition: background-color 0.3s;
+    display: flex; /* Adiciona display flex para centralizar verticalmente */
+    align-items: center; /* Centraliza verticalmente */
+  }
   
   button {
     background-color: #4caf50;