Merge pull request twbs#12432 from ChrisRiddell/signin-email-fix

Wrong input css for signin example

Author: juthilo

docs/examples/signin/signin.css

@@ -28,7 +28,7 @@ body {
 .form-signin .form-control:focus {
   z-index: 2;
 }
-.form-signin input[type="text"] {
+.form-signin input[type="email"] {
   margin-bottom: -1px;
   border-bottom-left-radius: 0;
   border-bottom-right-radius: 0;
@@ -37,4 +37,4 @@ body {
   margin-bottom: 10px;
   border-top-left-radius: 0;
   border-top-right-radius: 0;
-}
+}