body {
  background-color: rgba(0, 0, 0, 1);
  background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url(https://i.imgur.com/dgxaPle.gif);
  

 
  font-family: Verdana;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 10%;
}

body {
  background-color: #2c2c2c;
}