/* 
//https://codepen.io/Rplus/pen/lEDBj
// A Pen By Rplus 
//<div class="bb"></div>
*/


.bb::before, .bb::after, .bb {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

.bb {
  width: 200px;
  height: 200px;
  margin: auto;
  background: url("https://hacklab.yoloctf.org/yoloctf/img/player_02_200.png") no-repeat 50%/70% rgba(0, 0, 0, 0.1);
  color: #ffcc00;
  box-shadow: inset 0 0 0 1px rgba(255, 204, 0, 0.5);
}

.bb::before, .bb::after {
  content: "";
  margin: -5%;
  box-shadow: inset 0 0 0 2px;
  animation: clipMe 8s linear infinite;
  z-index: 200;
}

.bb::before {
  animation-delay: -4s;
}

/*
.bb:hover::after, .bb:hover::before {
  background-color: rgba(255, 0, 0, 0.3);
}
*/

@keyframes clipMe {
  0%, 100% {
    clip: rect(0px, 220px, 2px, 0px);
  }
  25% {
    clip: rect(0px, 2px, 220px, 0px);
  }
  50% {
    clip: rect(218px, 220px, 220px, 0px);
  }
  75% {
    clip: rect(0px, 220px, 220px, 218px);
  }
}