body {
  background-image: radial-gradient(circle at 85% 1%, hsla(190, 0%, 93%, 0.05) 0%,
      hsla(190, 0%, 93%, 0.05) 96%, transparent 96%, transparent 100%),
    radial-gradient(circle at 14% 15%, hsla(190, 0%, 93%, 0.05) 0%,
      hsla(190, 0%, 93%, 0.05) 1%, transparent 1%, transparent 100%),
    radial-gradient(circle at 60% 90%, hsla(190, 0%, 93%, 0.05) 0%,
      hsla(190, 0%, 93%, 0.05) 20%, transparent 20%, transparent 100%),
    radial-gradient(circle at 79% 7%, hsla(190, 0%, 93%, 0.05) 0%,
      hsla(190, 0%, 93%, 0.05) 78%, transparent 78%, transparent 100%),
    radial-gradient(circle at 55% 65%, hsla(190, 0%, 93%, 0.05) 0%,
      hsla(190, 0%, 93%, 0.05) 52%, transparent 52%, transparent 100%),
    linear-gradient(135deg, rgb(37, 56, 222), rgb(96, 189, 244));
}

hr {
  background-color: none;
  border-color: grey;
  border-style: dotted none none none;
  border-width: 5px;
  height: 0px;
  width: 5%;
}

center {
  margin: auto;
  width: 50%;
  border: 3px solid green;
  padding: 10px;
}