.button-grid {
	background: rgb(192, 192, 192);
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	grid-template-rows: repeat(5, 1fr);
	grid-gap: 1%;
	grid-gap: 1px;
	height: 80%;
}

.button {
	display: flex;
	align-items: center;
	justify-content: center;
}

.button:hover {
	background-color: rgb(196, 196, 196);
	cursor: pointer;
}

.button-number {
	background-color: rgb(226, 226, 226);
}

.button-operator,
.button-control {
	background-color: rgb(105, 189, 97);
}