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@import url(https://fonts.googleapis.com/css?family=Anonymous+Pro);

$blue: #343F4F;
$pink: #FC6D6D;

html, body {
	display: flex;
	width: 100%;
	height: 100%;
	justify-content: center;
	align-items: center;
	background-color: $pink;
	overflow: hidden;
}

body {
	&:after {
  	content: "";
  	position: absolute;
  	top: 0; 
		left: 0;
  	padding-bottom: 50%;
  	width: 57.7%;
		background-color: $blue;
  	transform-origin: 0 0;
  	transform: rotate(-30deg) skewX(30deg);
		z-index: 1;
	}
	
	&:before {
  	content: "";
  	position: absolute;
  	top: 100%; 
		left: 0;
  	padding-bottom: 50%;
  	width: 57.7%;
		background-color: $blue;
  	transform-origin: 0 0;
  	transform: rotate(-30deg) skewX(30deg);
		z-index: 1;
	}
}

.card {
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 375px;
	height: 667px;
	background-color: $blue;
	overflow: hidden;
	
	.card__counter {
		display: flex;
		font-family: 'Anonymous Pro', ;
		font-weight: bold;
		color: white;
		
		.card__counter__num {
			font-size: 150px;
			padding: 0 20px;
			z-index: 15;
		}
		
		span {
			margin-top: 45px;
			font-size: 65px;
			opacity: 1;
			transition: opacity .3s;
			z-index: 3;
		} 
	}
	
	.card__button {
		position: absolute;
		bottom: 85px;
		left: calc(50% - 37.5px);
		width: 75px;
		height: 75px;
		border-radius: 50%;
		background-color: $pink;
		cursor: pointer;
		z-index: 10;

		
		&.card__button--triggered {
			animation: button 3.9s linear;
			
			~ .card__counter span {
				opacity: 0;
			}
		}
	}
	
	.card__overlay {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		z-index: 10;
		box-shadow: inset 0px 0px 85px 70px $blue;
	}
}


@keyframes button {
	4.9% {
		bottom: -250px;
		left: calc(50% - 500px);
		width: 1000px;
		height: 1000px;
		border-radius: 50%;
	}
	5.1% {
		bottom: 0;
		left: calc(50% - 187.5px);
		width: 375px;
		height: 667px;
		border-radius: 0;
	}
	80% {
		bottom: 0;
		left: calc(50% - 187.5px);
		width: 375px;
		height: 0;
		border-radius: 0;
		opacity: 1;
	}
	
	85.1% {
		bottom: 0;
		left: calc(50% - 187.5px);
		width: 375px;
		height: 0;
		border-radius: 0;
		visibility: hidden;
	}
	
	85.2% {
		bottom: 85px;
		left: 50%;
		width: 0;
		height: 0;
		border-radius: 50%;
		visibility: hidden;
	}
	
	95% {
		bottom: 127.5px;
		left: 50%;
		width: 0px;
		height: 0px;
		border-radius: 50%;
		visibility: visible;
	}
	
	100% {
		bottom: 85px;
		left: calc(50% - 37.5px);
		width: 75px;
		height: 75px;
		border-radius: 50%;
		visibility: visible;
	}
	
	
	
}

.shadow {
		display: flex;
		position: absolute;
		top: 55px;
		width: 375px;
		height: 667px;
		content: '';
		box-shadow: 0 0 100px 0 black;
		z-index: 10;
}

button = $('.card__button');

button.on('click', function clicked() {
	$(this).addClass('card__button--triggered');
		
	$(this).off('click', clicked);

var count=30;
var counter=setInterval(timer, 100);

function timer()
{
  count -= 1;
  if (count === -1)
  {
  	clearInterval(counter);
		
		setTimeout(function(){
			count = 30;
			document.getElementById("num").innerHTML=count;

			button.removeClass('card__button--triggered');
			button.on('click', clicked);
			
		}, 800);

     return;
  }
 document.getElementById("num").innerHTML=count;
}
	
});

<div class="shadow"></div>
<div class="card">
	<div class="card__overlay"></div>
	<div class="card__button"></div>
	<div class="card__counter">
		<span>20</span>
		<div id="num" class="card__counter__num">
			30
		</div>
		<span>40</span>
	</div>
</div>