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

html{
  font-size: 10px;
}

body{
  width :100%;
  height: 100vh;
  background-image: url('img.jpeg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  font-family: Arial;
}

.overlay{
  width: 100%;
  height: 100%;
  background: rgba(0 0 0 .7);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container{
  width:90%;
  margin: auto;
}

.cover{
  text-align: center;
  backdrop-filter: blur(5rem);
  padding: 2rem;
  color: #fff;
  box-shadow: 0 5px 10px  #11ffee;
}

#time{
  font-size: 8rem;
}

#date{
  font-size: 3rem;
}