.stampContainer {
  max-width: 300px;
  -webkit-backface-visibility: hidden;
  position: relative;
  left: 0px;
  top: 160px;
}

.stamp {
  position: relative;
}
.stamp:after {
  border: solid 0.1em #d00;
  border-radius: .2em;
  color: #ff0000;
  content: 'GUILTY';
  font-size: 50px;
  font-weight: bold;
  line-height: 1;
  opacity: 0;
  position: absolute;
  padding: .1em .5em;
  margin: 0 auto;
  top: 10%;
  left: 10%;
  text-transform: uppercase;
  opacity: 0;
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
  -webkit-transform: rotate(-2deg) scale(5);
          transform: rotate(-2deg) scale(5);
  -webkit-transition: all 0.3s cubic-bezier(0.6, 0.04, 0.98, 0.335);
  transition: all 0.3s cubic-bezier(0.6, 0.04, 0.98, 0.335);
}

.stampIt .stamp:after {
  opacity: .75;
  -webkit-transform: rotate(-15deg) scale(1);
          transform: rotate(-15deg) scale(1);
}

/************************************************************************************
MEDIA QUERIES
*************************************************************************************/

/* for 799px or less */
@media screen and (max-width: 799px) {
  .stampContainer {
    left: 58px;
    top: 184px;
  }

  .stamp:after {
    font-size: 44px;
    -webkit-transform: rotate(-2deg) scale(1);
            transform: rotate(-2deg) scale(1);
  }
}

/* for 639px or less */
@media screen and (max-width: 639px) {
  .stampContainer {
    left: 218px;
    top: 330px;
  }

  .stamp:after {
    font-size: 44px;
    -webkit-transform: rotate(-2deg) scale(1);
            transform: rotate(-2deg) scale(1);
  }
}

/* for 479px or less */
@media screen and (max-width: 479px) {
  .stampContainer {
    left: 53px;
    top: 360px;
  }

  .stamp:after {
    font-size: 30px;
    -webkit-transform: rotate(-2deg) scale(1);
            transform: rotate(-2deg) scale(1);
  }  
}