#inner {  
  # border: 0.05em solid black;
  text-align: center;
}

#outer {
  # border: 0.05em solid red;
  width:100%;
  display: flex;
  justify-content: center;
}

.loader_container {
  position: relative;
  text-align: center;
  color: black;
}

.centered {
  position: absolute;
  top: 50%;
  left: 20%;
  transform: translate(-50%, -50%);
}