Update styles.py

styles.py

@@ -45,10 +45,14 @@ def get_custom_css():
             text-align: center;
             display: flex;
             justify-content: center;
+            margin-top: 15px;
+            width: 80%;
+            margin-left: auto;
+            margin-right: auto;
         }
         
         [data-testid="stDownloadButton"] button {
-            width: 80%;
+            width: 100%;
             border-radius: 5px;
             height: 3em;
             background-color: #00D100;