.form-signin {
  max-width: 330px;
  padding: 15px;
  margin: 0 auto;
}
.form-signin img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 10px;
}
.form-signin .form-signin-heading {
  margin-bottom: 10px;
}
.form-signin .form-control {
  position: relative;
  height: auto;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  padding: 10px;
  font-size: 16px;
  width: 100%;
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.form-signin .form-control:focus {
  z-index: 2;
}
.form-signin input[type="text"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}
.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}
.form-signin button[type="submit"] {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}