style.css

 lkasjdkfjksd f@import url('https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900&display=swap');
*
{
  margin: 0;
  padding:0;
  box-sizing: border-box;
  font-family: 'Poppins',sans-serif;
}
section{
  position:relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: url(bg.jpg);
  background-position: center;
  background-attachment: fixed;
  background-size: cover;
  overflow: hidden;
}
section h2
{
  font-size: 5em;
  color: #fff;
  pointer-events: none;
  text-shadow: 0 10px 20px rgba(0,0,0,0.5);
}
section .glass
{
  position: absolute;
  transform: translate(-50%,-50%);
  pointer-events: none;
  width: 300px;
  height: 200px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
  background: transparent;
  backdrop-filter: blur(10px);
  transition: 0.2%;
}