html,
body{
  width: 100%;
  height: 100%;
  margin: 0;
}

body{
  min-height: 100vh;
  background-image: url("https://leadjuggler.com/include/img/lj_intro_02.webp");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}