signup.css

html, body {
  height: 100%;
}

body{
  display:grid;
  align-items: center;
}

.mb-4{
  margin-left: 32%;
  align-items: center;
}

.form-signin {
  max-width: 330px;
  padding: 1rem;
}

.form-signin .form-floating:focus-within {
  z-index: 2;
}

.form-signin input[placeholder="Name"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.form-signin input[placeholder="name@example.com"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0; 
}

.form-signin input[placeholder="Password"] {
  margin-bottom: -1px;
  border-radius: 0;
}