*{
    margin: 0;
    padding: 0;
}

body, html{
    height: 100%;
}

.katinka{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#particles-js{
  width: 100%;
  height: 100%;
  background-color: #fff;
  background-image: url('');
  background-size: cover;
  background-position: 50% 50%;
  background-repeat: no-repeat;
}