diff --git a/auth.php b/auth.php
index 7f7e2f5..a022e59 100644
--- a/auth.php
+++ b/auth.php
@@ -47,7 +47,7 @@ class auth
                           padding: 20px;}\n";
     $res .= "input[type='text'], input[type='password'] {
                      display:inline-block;
-                     border-radius : 10px 10px 10px 10px;
+                     border-radius : 4px;
                      border: 1px solid #cccccc;
                      margin: 0px;
                      height:10px;
@@ -55,19 +55,19 @@ class auth
                      margin-bottom: 20px;
                      background-color:white;}\n";
     $res .= "input[type='submit'] {
+                     display: inline-block;
+                     padding: 10px 32px;
+                     color: #fff;
+                     background-color: #337ab7;
+                     border-color: #2e6da4;
+                     border: 1px solid #2e6da4;
+                     font-size: 14px;
+                     font-weight: 400;
                      vertical-align: middle;
-                     border-radius : 10px 10px 10px 10px;
+                     border-radius : 4px;
                      height: 40px;
                      margin-top : 10px;
-                     padding-top : 10px;
-                     padding-bottom : 10px;
-                     padding-left : 30px;
-                     padding-right : 30px;
-                     display: inline-block;
-                     text-shadow: 0px 1px 1px rgba(255, 255, 255, 0.75);
-                     box-shadow: 0px 1px 0px rgba(255, 255, 255, 0.2) inset,
-                                 0px 1px 2px rgba(0, 0, 0, 0.05);
-                     background-color: #cccccc;}\n";
+                     }\n";
     $res .= "h1 { color: #bbb }\n";
     $res .= "h2 { padding-top: 0px; padding-bottom: 30px;}\n";
     $res .= "  </style>\n";