html, body {
  height: 100%;
  margin: 20px;
  padding: 0;
  background: url(bg.jpg) no-repeat center center fixed;
  background-size: cover;
}

#attribution {
  position: fixed;
  right: 10px;
  bottom: 10px;
  color: #FE8989;
  z-index: 100;
  font-weight: bold;
  cursor: pointer;
}
#attribution a {
  color: inherit;
  text-decoration: inherit;
}

#container {
  height: 100%;
  overflow: hidden;
	

  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}

.button {
  position: relative;
  margin-bottom: 30px;
  margin-right: 30px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  background: #000000;
  box-shadow: 0px 0px 0 0px rgba(0, 0, 0, 0);
  border-radius: 10px;
  width: 15.25rem;
  padding: 1rem 0;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1.75rem;
  color: white;
  cursor: pointer;
  -moz-transition: all 0.3s ease;
  transition: all 0.3s ease;
}
.button .icons {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 2.3rem 0 0;
  width: 1.25rem;
  height: 2.6rem;
}
.button .icons i {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
}
.button .icons .icon-default {
  transition: opacity .3s, transform .3s;
}
.button .icons .icon-hover {
  transition: opacity .3s, transform .3s;
  transform: rotate(-90deg) scale(0.5);
  opacity: 0;
}
.button:hover {
  transform: scale(1.2);
  box-shadow: 5px 10px rgba(0, 0, 0, 0.15);
}
.button:hover .icon-hover {
  transform: rotate(90deg) scale(1);
  opacity: 1;
}
.button:hover .icon-default {
  transform: rotate(90deg) scale(0.5);
  opacity: 0;
}