.masthead {
  height: 100vh;
  min-height: 500px;
  background-image: url('/image/b8aec3dce581038926e3fa97e8bd290cfceebd38.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-color: #424242;
}