#size-indicator {
  display: block;
}
#size-indicator {
  z-index: 10000;
  position: absolute;
  top: 0;
  right: 0;
  height: 20px;
  width: 30px;
  background-color: red;
  color: white;
  text-align: center;
}
#size-indicator-content:after {
  content: "-";
}
@media (min-width: 480px) {
  #size-indicator {
    background-color: pink;
  }
  #size-indicator-content:after {
    content: "XS";
  }
}
@media (min-width: 768px) {
  #size-indicator {
    background-color: magenta;
  }
  #size-indicator-content:after {
    content: "SM";
  }
}
@media (min-width: 992px) {
  #size-indicator {
    background-color: green;
  }
  #size-indicator-content:after {
    content: "MD";
  }
}
@media (min-width: 1200px) {
  #size-indicator {
    background-color: blue;
  }
  #size-indicator-content:after {
    content: "LG";
  }
}
@media (min-width: 1570px) {
  #size-indicator {
    background-color: black;
  }
  #size-indicator-content:after {
    content: "XL";
  }
}