* {
  font-family:  sans-serif;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #262626;
}

.center{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
}

.pulse{
  width: 200px;
  height: 100px;
  background: #ff6d4a;
  border-radius: 1rem;
  color: #fff;
  font-family: 20px;
  text-align: center;
  line-height: 100px;
  text-transform: uppercase;
  transition: 0.3s;
 
}
.pulse:hover{
  animation: animate 3s linear infinite;
}
@keyframes animate {
  0%{
    box-shadow: 0 0 0 0 rgba(255,109,74,.7),0 0 0 0 rgba(255,109,74,.7);
  }
  40%{
    box-shadow: 0 0 0 50px rgba(255,109,74,0),0 0 0 0 rgba(255,109,74,.7);
  }
  80%{
    box-shadow: 0 0 0 50px rgba(255,109,74,0),0 0 0 0 rgba(255,109,74,0);
  }
  100%{
    box-shadow: 0 0 0 0 rgba(255,109,74,0),0 0 0 0 rgba(255,109,74,0);
  }
  
}