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HTML 

              
                <div class="container">
	<section id="ico" class="ico active animate">
		<div class="btn enter" id="contact">
			<div><span><svg style="width:24px;height:24px" viewBox="0 0 24 24">
    <path fill="#000000" d="M22 6C22 4.9 21.1 4 20 4H4C2.9 4 2 4.9 2 6V18C2 19.1 2.9 20 4 20H20C21.1 20 22 19.1 22 18V6M20 6L12 11L4 6H20M20 18H4V8L12 13L20 8V18Z" />
		</svg></span><span class="text"><span>CONTACT</span></span>
			</div>
		</div>
	</section>
	<section id="frm">
		<div class="form-wrapper">
			<h3 class="text-center"><span>CONTACT</span></h3>
			<p>This contact form is for design only. To contact me, visit my <a href="https://rachelhcreative.com" target="web">website</a>. Please try this form out to see what it does. </p>
			<div class="form-group">
				<label for="name">Name <span class="red">*</span></label>
				<input type="text" class="form-control" required id="name" placeholder="Your name">
			</div>
			<div class="form-group">
				<label for="email">Email address <span class="red">*</span></label>
				<input type="email" class="form-control" required id="email" aria-describedby="emailHelp" placeholder="you@email.com">
				<small id="emailHelp" class="form-text">We'll never share your email with anyone else.</small>
			</div>
			<div class="form-group">
				<label for="details">Details</label>
				<textarea class="form-control" id="details" rows="3"></textarea>
			</div>
			<div id="frm-sb" class="button">SUBMIT</div>
		</div>
	</section>
	<section id="thx">
		<div class="thx-wrapper">
			<h3 class="text-center"><span>THANK YOU</span></h3>
			<p><span id="user"></span>, thank you for testing out my form. If you want to contact me or view more of my projects visit my website:
				<div class="text-center"><a href="https://rachelhdesigner.com" target="_blank">Rachel H. Designer</a></div>
			</p>
			<div class="output">
				<p>Name: <span id="fullname"></span></p>
				<p>Email: <span id="eml"></span></p>
				<p id="det"></p>
			</div>
			<div>
				<div id="frm-st" class="btn custom">
					<div><span><svg style="width:24px;height:24px" viewBox="0 0 24 24">
    <path fill="#000000" d="M12.5,8C9.85,8 7.45,9 5.6,10.6L2,7V16H11L7.38,12.38C8.77,11.22 10.54,10.5 12.5,10.5C16.04,10.5 19.05,12.81 20.1,16L22.47,15.22C21.08,11.03 17.15,8 12.5,8Z" />
		</svg></span><span class="text"><span>Start Over</span></span>
					</div>
				</div>
			</div>

		</div>
	</section>
</div>
!

CSS 

              
                /*/dark blue : 	#00546f*/
body {
	min-height: 200vh;
	width: 100vw;
	background-color: #e9e9e9;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='32' viewBox='0 0 16 32'%3E%3Cg fill='%2300546f' fill-opacity='0.09'%3E%3Cpath fill-rule='evenodd' d='M0 24h4v2H0v-2zm0 4h6v2H0v-2zm0-8h2v2H0v-2zM0 0h4v2H0V0zm0 4h2v2H0V4zm16 20h-6v2h6v-2zm0 4H8v2h8v-2zm0-8h-4v2h4v-2zm0-20h-6v2h6V0zm0 4h-4v2h4V4zm-2 12h2v2h-2v-2zm0-8h2v2h-2V8zM2 8h10v2H2V8zm0 8h10v2H2v-2zm-2-4h14v2H0v-2zm4-8h6v2H4V4zm0 16h6v2H4v-2zM6 0h2v2H6V0zm0 24h2v2H6v-2z'/%3E%3C/g%3E%3C/svg%3E");
	font-family: "Asap", sans-serif;
}
.container {
}
section {
	display: none;
}
section.active {
	display: block;
	height: 100vh;
}

.btn.enter {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: scale(2);
}
.btn {
	position: absolute;
	top: 50%;
	left: 50%;
	background-color: #00546f;
	transition: b40ackground-color 250ms ease-in-out;
	color: white;
	border-radius: 10px;
	font-size: small;
	font-weight: bold;
}
.btn.custom {
	position: absolute;
	left: 40px;
	top: 400px;
	background-color: rgba(255, 255, 255, 0.2);
}
.btn span:nth-child(2) {
	max-width: 0;

	-webkit-transition: max-width 650ms;
	transition: max-width 650ms;
	display: inline-block;
	vertical-align: top;
	white-space: nowrap;
	overflow: hidden;
}
.btn:hover {
	background-color: #008db9;
}
.btn:hover span {
	max-width: 8rem;
}
.btn span:nth-child(2) > span {
	padding-right: 20px;
	position: relative;
	top: 2px;
	left: 10px;
	min-width: 100px;
}
.text {
	text-transform: uppercase;
	font-weight: bold;
}

.btn > div > span > svg > path {
	fill: white;
}
footer {
	padding-bottom: 20px;
}
.ftr-lnk {
	color: #008db9;
	text-decoration: none;
}
.red {
	color: crimson;
	font-weight: bold;
}
#frm,
#thx {
	padding: 30px 40px;
	margin: 30px 0px;
	background-color: #00546f;
	color: #fff;
	min-height: 700px;
	border: 10px solid #e9e9e9;
}
#thx {
	min-height: 700px;
}
.container {
	display: flex;
	flex-direction: column;
}
#frm a:link,
#frm a:visited {
	color: white;
	text-decoration: underline;
}
small {
	color: #ffffff;
}
h3 {
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
	padding-bottom: 10px;
	padding-top: 10px;
	margin-bottom: 20px;
}
.button {
	cursor: pointer;
	background-color: #008db9;
	border-radius: 10px;
	padding: 10px;
	text-align: center;
	color: #fff;
	margin-top: 40px;
	font-weight: bold;
	transition: background-color 250ms ease, color 250ms ease;
}
.button:hover {
	background-color: #b2cbd3;
	color: #444;
}
.required {
	background-color: #fef79b;
	border: 1px solid red;
}
#thx a:link,
#thx a:visited {
	font-size: larger;
	color: #fff;
	text-decoration: underline;
}
.custom > span > svg > path {
	fill: white;
}
.custom > span:nth-child(2) {
	padding-left: 10px;
}
.custom {
}
section {
	opacity: 0;
}
.animate {
	-webkit-animation: fade-in-fwd 0.6s cubic-bezier(0.39, 0.575, 0.565, 1) 1s
		forwards;
	animation: fade-in-fwd 0.6s cubic-bezier(0.39, 0.575, 0.565, 1) 1s forwards;
}
/* ----------------------------------------------
 * Generated by Animista on 2019-12-23 7:44:58
 * Licensed under FreeBSD License.
 * See http://animista.net/license for more info. 
 * w: http://animista.net, t: @cssanimista
 * ---------------------------------------------- */

/**
 * ----------------------------------------
 * animation fade-in-fwd
 * ----------------------------------------
 */
@-webkit-keyframes fade-in-fwd {
	0% {
		-webkit-transform: translateZ(-80px);
		transform: translateZ(-80px);
		opacity: 0;
	}
	100% {
		-webkit-transform: translateZ(0);
		transform: translateZ(0);
		opacity: 1;
	}
}
@keyframes fade-in-fwd {
	0% {
		-webkit-transform: translateZ(-80px);
		transform: translateZ(-80px);
		opacity: 0;
	}
	100% {
		-webkit-transform: translateZ(0);
		transform: translateZ(0);
		opacity: 1;
	}
}
!

JS 

              
                //to create a ui contact button with animation
//to create on click event that will display a simple
//contact form that will only "submit" when the user fills in the
//correct fields
// to display a thank you message using the data that user put in
// the form and to have a reset this page "button event"
(function() {
	"use strict";
	var tst = 0;
	var ct = document.getElementById("contact");
	var ico = document.getElementById("ico");
	var frm = document.getElementById("frm");
	var thx = document.getElementById("thx");
	var det = document.getElementById("details");
	var frmbtn = document.getElementById("frm-sb");
	var user = document.getElementById("user");
	var fnm = document.getElementById("fullname");
	var eml = document.getElementById("eml");
	var details = document.getElementById("details");
	var det = document.getElementById("det");
	function valid(id) {
		if (id.value === "") {
			id.classList.add("required");
		} else {
			id.classList.remove("required");
			tst++;
		}
	}
	ct.addEventListener("click", function() {
		ico.classList.remove("active");
		frm.classList.add("active");
		frm.classList.add("animate");
	});
	var name = document.getElementById("name");
	var email = document.getElementById("email");
	frmbtn.addEventListener("click", function() {
		valid(name);
		valid(email);
		if (tst === 2) {
			frm.classList.remove("active");
			document.body.scrollTop = document.documentElement.scrollTop = 0;
			thx.classList.add("active");
			thx.classList.add("animate");
			user.innerHTML = name.value;
			eml.innerHTML = email.value;
			fnm.innerHTML = name.value;
			if (details.value !== "") {
				det.innerHTML = "<span>Details: </span>" + details.value;
			} else {
				det.innerHTML = "<span>No further details given.</span>";
			}
		}
	});
	document.getElementById("frm-st").addEventListener("click", function() {
		thx.classList.remove("active");
		document.body.scrollTop = document.documentElement.scrollTop = 0;
		ico.classList.add("active");
		ico.classList.add("animate");
		email.value("");
		name.value("");
		details.value("");
	});
})();
!
999px

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