*
{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: consolas;
}
body
{
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #111;
}
.scan
{
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scan .fingerprint
{
  position: relative;
  width: 300px;
  height: 380px;
  background: url(fingerPrint_01.png);
  background-size: 300px;
}
.scan .fingerprint::before
{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url(fingerPrint_02.png);
  background-size: 300px;
  animation: animate 4s ease-in-out infinite;
}
@keyframes animate 
{
  0%,100%
  {
    height: 0%;
  }
  50%
  {
    height: 100%;
  }
}
.scan .fingerprint::after
{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: #3fefef;
  border-radius: 8px;
  filter: drop-shadow(0 0 20px #3fefef) drop-shadow(0 0 60px #3fefef);
  animation: animate_line 4s ease-in-out infinite;
}
@keyframes animate_line
{
  0%,100%
  {
    top: 0%;
  }
  50%
  {
    top: 100%;
  }
}
.scan h3
{
  text-transform: uppercase;
  font-size: 2em;
  letter-spacing: 2px;
  margin-top: 20px;
  color: #3fefef;
  filter: drop-shadow(0 0 20px #3fefef) drop-shadow(0 0 60px #3fefef);
  animation: animate_text 0.5s steps(1) infinite;
}
@keyframes animate_text
{
  0%,100%
  {
    opacity: 0;
  }
  50%
  {
    opacity: 1;
  }
}