.pulse:hover,
.pulse:focus {
  -webkit-animation: pulse 1s;
          animation: pulse 1s;
  box-shadow: 0 0 0 2em transparent;
}

@-webkit-keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--hover);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--hover);
  }
}

.pulse {
  --color: #e4cb58;
  --hover: #ef8f6e;
}

#button-shape {
  color: var(--color);
  transition: 0.25s;
}
#button-shape:hover, #button-shape:focus {
  border-color: var(--hover);
  color: #fff;
}

#button-shape { 
	font-weight: 900 !important;
  background: none;
  border: 2px solid;
  font: inherit;
  line-height: 1;
  margin: 0.5em;
  padding: 1em 2em;
	cursor: pointer;
	margin-bottom: 25px;
	float: right;
	margin-right: 25px;
}