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CSS

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CSS Base

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JavaScript

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HTML 

              
                <div class="plr">
	<div class="plr_in">
		<span class="letter one">
			<ul>
				<li>t</li>
				<li>w</li>
				<li>p</li>
				<li>l</li>
			</ul>
		</span>
		<span class="letter two">
			<ul>
				<li>a</li>
				<li>h</li>
				<li>o</li>
				<li>l</li>
			</ul>
		</span>
		<span class="letter three">
			<ul>
				<li>i</li>
				<li>a</li>
				<li>e</li>
				<li>a</li>
			</ul>
		</span>
		<span class="letter four">
			<ul>
				<li>n</li>
				<li>t</li>
				<li>a</li>
				<li>d</li>
			</ul>
		</span>
		<span class="letter five">
			<ul>
				<li>s</li>
				<li>k</li>
				<li>i</li>
				<li>&nbsp;</li>
			</ul>
		</span>
		<span class="letter six">
			<ul>
				<li>&nbsp;</li>
				<li>s</li>
				<li>e</li>
				<li>n</li>
			</ul>
		</span>
		<span class="letter seven">
			<ul>
				<li>&nbsp;</li>
				<li>g</li>
				<li>&nbsp;</li>
				<li>&nbsp;</li>
			</ul>
		</span>
	</div>
</div>

<h1 class="hello">That's it</h1>
!

CSS 

              
                body {
	background: #fff;
	position: relative;
}
.hello {
	position: fixed;
	top: 0;
	right: 0;
	left: 0;
	bottom: 0;
	margin: auto;
	width: 310px;
	height: 50px;
	font-size: 28px;
	font-weight: bold;
	font-family: sans-serif;
	letter-spacing: 7px;
	text-align: center;
	color: #3498db;
	z-index: 100;
}
/* loader */
.plr {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 10000;
	background: #3498db;
	transition: opacity 500ms ease;
}
.plr_in {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	margin: auto;
	width: 385px;
	height: 50px;
}
.letter {
	position: relative;
	display: inline-block;
	width: 50px;
	height: 50px;
	overflow: hidden;
	text-align: center;
	color: #fff;
	border: 1px solid #fff;
	box-sizing: border-box;
}
.letter ul {
	margin: 0;
	padding: 0;
	list-style: none;
	box-sizing: border-box;
}
.letter ul li {
	font-size: 38px;
	text-transform: capitalize;
}
/* max 480px*/
@media (max-width: 480px) {
	.plr_in {
		width: 250px;
		height: 50px;
	}
	.letter {
		width: 30px;
		height: 50px;
	}
}
/* animations */
.one ul li {
	animation: one 10s infinite ease;
}
.two ul li {
	animation: two 10s infinite ease;
}
.three ul li {
	animation: three 10s infinite ease;
}
.four ul li {
	animation: four 10s infinite ease;
}
.five ul li {
	animation: five 10s infinite ease;
}
.six ul li {
	animation: six 10s infinite ease;
}
.seven ul li {
	animation: seven 10s infinite ease;
}

@keyframes one {
	0% {
		transform: translate(0px, -128px);
	}
	20% {
		transform: translate(0px, -128px);
	}
	40% {
		transform: translate(0px, -83px);
	}
	60% {
		transform: translate(0px, -40px);
	}
	80% {
		transform: translate(0px, 5px);
	}
	100% {
		transform: translate(0px, -128px);
	}
}
@keyframes two {
	0% {
		transform: translate(0px, -83px);
	}
	20% {
		transform: translate(0px, -83px);
	}
	40% {
		transform: translate(0px, -128px);
	}
	60% {
		transform: translate(0px, 5px);
	}
	80% {
		transform: translate(0px, -40px);
	}
	100% {
		transform: translate(0px, -83px);
	}
}
@keyframes three {
	0% {
		transform: translate(0px, -40px);
	}
	20% {
		transform: translate(0px, -40px);
	}
	40% {
		transform: translate(0px, -83px);
	}
	60% {
		transform: translate(0px, 5px);
	}
	80% {
		transform: translate(0px, -128px);
	}
	100% {
		transform: translate(0px, -40px);
	}
}
@keyframes four {
	0% {
		transform: translate(0px, -128px);
	}
	20% {
		transform: translate(0px, -128px);
	}
	40% {
		transform: translate(0px, -83px);
	}
	60% {
		transform: translate(0px, -40px);
	}
	80% {
		transform: translate(0px, 5px);
	}
	100% {
		transform: translate(0px, -128px);
	}
}
@keyframes five {
	0% {
		transform: translate(0px, -83px);
	}
	20% {
		transform: translate(0px, -83px);
	}
	40% {
		transform: translate(0px, 5px);
	}
	60% {
		transform: translate(0px, -128px);
	}
	80% {
		transform: translate(0px, -40px);
	}
	100% {
		transform: translate(0px, -83px);
	}
}
@keyframes six {
	0% {
		transform: translate(0px, -128px);
	}
	20% {
		transform: translate(0px, -128px);
	}
	40% {
		transform: translate(0px, -83px);
	}
	60% {
		transform: translate(0px, 5px);
	}
	80% {
		transform: translate(0px, -40px);
	}
	100% {
		transform: translate(0px, -128px);
	}
}
@keyframes seven {
	0% {
		transform: translate(0px, -40px);
	}
	20% {
		transform: translate(0px, -40px);
	}
	40% {
		transform: translate(0px, -128px);
	}
	60% {
		transform: translate(0px, 5px);
	}
	80% {
		transform: translate(0px, -83px);
	}
	100% {
		transform: translate(0px, -40px);
	}
}
!

JS 

              
                const _ = (el) => document.querySelector(el);
const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
// wait same seconds of css animation
sleep(8000)
  .then(() => (_(".plr").style.opacity = 0))
  .catch((e) => console.log(e))
  .finally(() => console.log("add opacity to 0"));
sleep(10000)
  .then(() => _(".plr").remove())
  .catch((e) => console.log(e))
  .finally(() => console.log("remove div"));
!
999px

Console