body {
  background-color: #0000;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  overflow: hidden;
}

.btn__sha-0040 {
  color: #2a3239;
  text-align: center;
  letter-spacing: 5px;
  text-transform: uppercase;
  background-color: #3e4a53;
  border-radius: 50px;
  flex: none;
  align-self: center;
  font-family: Varela Round, sans-serif;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  transition: all .4s;
  display: inline-block;
  position: relative;
}

.btn__sha-0040:hover {
  color: #fd79fd;
  text-shadow: 0 0 2px #f0f, 0 0 6px #f0f;
  box-shadow: inset 0 0 10px #f0f, 0 0 0 4px #fd79fd, 0 0 15px #f0f, 0 0 40px #f0f;
}

.sha-0040__label {
  padding: 20px 45px;
}