body {
 background-image: url("Black_Wallpaper.jpg");
 background-color: black;
}

.center-screen {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%);
}

.BigText {
 background-color: #FFCA36;
 padding: 30px;
 font-family: 'Silkscreen';
 font-size: 40px;
 text-align: center;
}
.NormalTxt {
 padding: 15px;
 font-family: 'Silkscreen';
 font-size: 15px;
 color: white;
 text-align: center;
}

.Sign {
  position: absolute;
  top: 70%;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%);
}