.container {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
  padding: 40px;
  border-radius: 15px;
  width: 800px;
  background: white;
  /*meletakkan form ke tengah*/
  margin: 80px auto;
  padding: 30px 25px;
}
button {
  width: 48%;
}
.form-group {
  padding-bottom: 10px;
}
.input-group-text {
  height: 40px;
}
.logo {
  vertical-align: center;
}
.nav-link:hover {
  background-color: grey;
}