#mail {
  display: inline-block;
  margin: auto;
}

.button {
  display: block;
  width: 115px;
  height: 45px;
  background: #345d98;
  padding: 10px;
  text-align: center;
  border-radius: 5px;
  color: white;
  font-weight: bold;
}
.button:hover {
  color: black;
  text-decoration: none;
}

.roll-in-left {
  -webkit-animation: roll-in-left 1s ease-out both;
  animation: roll-in-left 1s ease-out both;
}

@-webkit-keyframes roll-in-left {
  0% {
    -webkit-transform: translateX(-800px) rotate(-540deg);
    transform: translateX(-800px) rotate(-540deg);
    opacity: 0;
  }
  100% {
    -webkit-transform: translateX(0) rotate(0deg);
    transform: translateX(0) rotate(0deg);
    opacity: 1;
  }
}

@keyframes roll-in-left {
  0% {
    -webkit-transform: translateX(-800px) rotate(-540deg);
    transform: translateX(-800px) rotate(-540deg);
    opacity: 0;
  }
  100% {
    -webkit-transform: translateX(0) rotate(0deg);
    transform: translateX(0) rotate(0deg);
    opacity: 1;
  }
}