html,
body {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  background: rgb(176,172,172);
  background: linear-gradient(0deg, rgba(176,172,172,1) 0%, rgba(210,210,209,1) 47%, rgba(255,255,255,1) 100%);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}