JSFiddle - React, Tailwind, and code Playground

HTML

<div class="css3-notification">  
    <p>Hi, this is a notification and it bounces.</p>  
</div>

CSS

.css3-notification {
	font-size: .8em;
	text-align: center;
	padding: 10px;
	background-color: #111;
	color: #fff;
	box-shadow:	0px 1px 3px 0px rgba(0, 0, 0, .3);
	text-transform: uppercase;
	position: relative;
	font-weight: bold;
	
	-webkit-animation: bounce 1.2s ease-out;
	-moz-animation: bounce 800ms ease-out;
	-o-animation: bounce 800ms ease-out;
	animation: bounce 1.2s ease-out;
}

/* Webkit, Chrome and Safari */

@-webkit-keyframes bounce {
	0% {
		-webkit-transform:translateY(-100%);
	}
	5% {
		-webkit-transform:translateY(-100%);
	}
	15% {
		-webkit-transform:translateY(0);
		padding: 4px auto;
	}
	20% {
		-webkit-transform:translateY(-80%);
	}
	25% {
		-webkit-transform:translateY(0%);
		padding: 4px auto;
	}
	30% {
		-webkit-transform:translateY(-70%);
	}
	35% {
		-webkit-transform:translateY(0%);
		padding: 5px auto;
	}
	40% {
		-webkit-transform:translateY(-60%);
	}
	45% {
		-webkit-transform:translateY(0%);
		padding: 5px auto;
	}
	50% {
		-webkit-transform:translateY(-50%);
	}
	55% {
		-webkit-transform:translateY(0%);
		padding: 6px auto;
	}
	60% {
		-webkit-transform:translateY(-30%);
	}
	65% {
		-webkit-transform:translateY(0%);
		padding: 6px auto;
	}
	70% {
		-webkit-transform:translateY(-15%);
	}
	75% {
		-webkit-transform:translateY(0);
		padding: 8px auto;
	}
	80% {
		-webkit-transform:translateY(-10%);
	}
	85% {
		-webkit-transform:translateY(0);
		padding: 8px auto;
	}
	90% {
		-webkit-transform:translateY(-5%);
	}
	95% {
		-webkit-transform:translateY(0);
		padding: 10px;
	}
	100% {
		-webkit-transform:translateY(0);
		padding: 10px;
	}
}

/* Mozilla Firefox 15 below */
@-moz-keyframes bounce {
  0% {
	-moz-transform:translateY(-100%);
    opacity: 0;
  }
  5% {
  	-moz-transform:translateY(-100%);
    opacity: 0;
  }
  15% {
  	-moz-transform:translateY(0);
    padding-bottom: 5px;
  }
  30% {
  	-moz-transform:translateY(-50%);
  }
  40% {
  	-moz-transform:translateY(0%);
    padding-bottom: 6px;
  }
  50% {
 ...