.oew-effect-12 a::before,
.oew-effect-12 a::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  border: 2px solid rgba(0,0,0,0.1);
  border-radius: 50%;
  content: '';
  opacity: 0;
  -webkit-transition: -webkit-transform 0.3s, opacity 0.3s;
  -moz-transition: -moz-transform 0.3s, opacity 0.3s;
  transition: transform 0.3s, opacity 0.3s;
  -webkit-transform: translateX(-50%) translateY(-50%) scale(0.2);
  -moz-transform: translateX(-50%) translateY(-50%) scale(0.2);
  transform: translateX(-50%) translateY(-50%) scale(0.2);
}

.oew-effect-12 a::after {
  width: 90px;
  height: 90px;
  border-width: 6px;
  -webkit-transform: translateX(-50%) translateY(-50%) scale(0.8);
  -moz-transform: translateX(-50%) translateY(-50%) scale(0.8);
  transform: translateX(-50%) translateY(-50%) scale(0.8);
}

.oew-effect-12 a:hover::before,
.oew-effect-12 a:hover::after,
.oew-effect-12 a:focus::before,
.oew-effect-12 a:focus::after {
  opacity: 1;
  -webkit-transform: translateX(-50%) translateY(-50%) scale(1);
  -moz-transform: translateX(-50%) translateY(-50%) scale(1);
  transform: translateX(-50%) translateY(-50%) scale(1);
}