* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}
section {
  width: 100%;
  height: 100vh;
  display: flex;
  background-attachment: fixed;
  justify-content: center;
  align-items: center;
  background: linear-gradient(to bottom, #45fa7b7c, #0e3f8070),
    url(img/bg1.jpg) no-repeat center center/cover;
  clip-path: circle(180vh at 50% -80vh);
  margin-bottom: 1000px;
}

section h1 {
  color: #fff;
  text-transform: uppercase;
  font-size: 3em;
}