div.calc-frame
{
	height: 100vh;
	width: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
}

.calculator
{
	position: relative;
	display: grid;
}

.calculator .value
{
	grid-column: span 4;
	height: 100px;
	text-align: center;
	border: none;
	outline: none;
	padding: 0;
	font-size: 18px;
}

.calculator p
{
	display: grid;
	width: 60px;
	height: 60px;
	color: #fff;
	background:#666666;
	place-items:center;
	border: 1px solid rgba(0,0,0,0.1);
	cursor: pointer;
	transition: .5s;
}

.calculator p:active
{
	background: #30a007;
	color: #111;
	transition: .5s;
}

.calculator p.clear
{
	background: #74ff3b;	
	grid-column: span 2;
	width: 122px;
}

.calculator p.sum
{
	grid-row: span 2;
	height: 122px;
}

@media (max-width: 858px) {
	.calculator .value
{
	grid-column: span 4;
	height: 100px;
	width: 320px;
	text-align: center;
	border: none;
	outline: none;
	padding: 0;
	font-size: 18px;
}
	.calculator p
	{
		display: grid;
		width: 90px;
		height: 60px;
		color: #fff;
		background:#666666;
		place-items:center;
		border: 1px solid rgba(0,0,0,0.1);
		cursor: pointer;
		transition: .5s;
	}
	.calculator p.clear
	{
		background: #74ff3b;	
		grid-column: span 2;
		width: 182px;
	}
	
	.calculator p.sum
	{
		grid-row: span 2;
		height: 122px;
		width: 90px;
	}
}