html,
body {
  height: 100%;
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-10px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(10px);
  }
}

.shake {
  animation: shake 0.82s cubic-bezier(.36,.07,.19,.97) both;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  perspective: 1000px;
}

.gradient-background {
  background: linear-gradient(8deg,#8e3d85,#230a16,#28c0b8,#8669dc,#504a99);
  background-size: 300% 300%;
  animation: gradient-animation 50s ease infinite;
}

@keyframes gradient-animation {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}


.main-login{
    max-width: 430px;
}