*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container {
  position: relative;
  min-height: 100vh;
  background-color: rgb(95, 158, 160);
}

.btn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 1rem 2rem;
  font-size: 1.5rem;
  color: rgb(95, 158, 160);
  background-color: rgba(255, 255, 255, 0.5);
  outline: none;
  border: none;
  border-radius: 2rem;
  cursor: pointer;
}

.container,
.btn {
  transition: all 1s;
}

.btn:active {
  transform: scale(0.95) translate(-50%, -50%);
}