html { 
  background: url(images/background.jpg) no-repeat center center fixed;; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  background-color: #1f1f1f;
  font-family: Arial, Helvetica, sans-serif;
  font-size: xx-large;
}
.img {
  width: 500px;
  height: 200px;
  /* filter: invert(1); */
}
.bg-text {
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
}
.footer {
  text-align: center;
  position: absolute;
  top: 95%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size:50%;
}

.footer * {
  padding: 5%;
}