.image-corner {
  position: relative;
  margin-bottom: -100%;
  width: 100%;
  height: 100%;
  background-size: 250px 250px;
}
/*.container {
    position: relative;
    text-align: center;
    color: green;
}*/
  
.bottom-left {
    position: absolute;
    bottom: 8px;
    left: 16px;
}
  
.top-left {
    position: absolute;
    top: 8px;
    left: 16px;
}
  
.top-right {
    position: absolute;
    top: 8px;
    right: 16px;
}
  
.bottom-right {
    position: absolute;
    bottom: 8px;
    right: 16px;
}
  
.centered {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}