style.css

body {
  background-color: aliceblue;
  font-family: sans-serif;
}

#container {
  font-size: 1.5em;
  padding: 3em;
  margin: 7em;
  margin-bottom: 0;
  background-image: linear-gradient(141deg, #9fb8ad 0%, #1fc8db 51%, #2cb5e8 75%);
  color: white;
  border-radius: 4px;
  box-shadow: 5px 10px 32px 16px rgba(0,0,0,0.3);
}

#button {
  padding: 1em;
  border-radius: 4px;
  font-weight: 500;
  background-color: #E85F2C;
  box-shadow: -5px 10px rgba(0,0,0,0.3);
  cursor: pointer;
  transition-duration: 200ms;
  color: antiquewhite;
  border-color: transparent;
  font-size: 2em;
}

#button:active {
  box-shadow: -1px 2px rgba(0,0,0,0.3);
  transform: translate(-4px, 8px);
}

#button:focus {
  outline: transparent;
}

#button-container {
  position: fixed;
  bottom: 7em;
  width: 100vw;
  display: flex;
  justify-content: center;
}