.row {
	display: flex;
	justify-content: center;
	padding: 0px;
	margin: 5px;
}
.column {
	justify-content: center;
	padding: 0px;
	margin: 0;
}
.column_mid {
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: 2px;
	margin: 0;
}
.column_left {
	display: box;             
	text-align: left;
	padding: 0px;
	margin-left: 20px;
}



input.integer-big {
	padding: 3px;
	margin: 0px 0;
	box-sizing: border-box;
	text-align: center;
	border: none;
	width: 100px;
	height: 35px;
	background-color: white;
	color: red;
	font-size: 25px;
}
input.integer {
	padding: 2px;
	margin: 2px 0;
	box-sizing: border-box;
	text-align: center;
	border: none;
	width: 50px;
	height: 70px;
	background-color: white;
	color: red;
	font-size: 40px;
}
input.numerator {
	padding: 2px;
	margin: 0px 0;
	box-sizing: border-box;
	text-align: center;
	border: none;
	border-bottom: 2px solid black;
	width: 50px;
	height: 35px;
	background-color: white;
	color: green;
	font-size: 20px;
}
input.denominator {
	padding: 3px;
	margin: 0px 0;
	box-sizing: border-box;
	text-align: center;
	border: none;
	border-top: 2px solid black;
	width: 50px;
	height: 35px;
	background-color: white;
	color: blue;
	font-size: 20px;
}
input.expener-reducer {
	padding: 3px;
	margin: 0px 0;
	box-sizing: border-box;
	text-align: center;
	border: none;
	width: 50px;
	height: 35px;

	background-color: white;
	color: purple;
	font-size: 20px;
}
label.op {
	justify-content: center;
	padding: 3px;
	box-sizing: border-box;
	margin: 0px 0;
	text-align: center;
	border: none;
	width: 50px;
	height: 100px;
	align-items: center;
	color: black;
	font-size: 30px;
	font-weight: bold;
}
label.op_mid {
	display: flex;
	padding: 2px;
	box-sizing: border-box;
	margin: 1px 10px;
	text-align: center;
	border: none;
	width: 20px;
	height: 70px;
	justify-content: center;
	align-items: center;
	color: black;
	font-size: 40px;
	font-weight: bold;
}

label.op_left {
	padding: 0px;
	margin: 0px 0;
	text-align: left;
	color: black;
	font-size: 40px;
	font-weight: bold;
}

input.integer-big:focus {
	background-color: WhiteSmoke;
	border: 3px solid #555;
}
input.integer:focus {
	background-color: WhiteSmoke;
	border: 3px solid #555;
}
input.numerator:focus {
	background-color: WhiteSmoke;
	border: 3px solid #555;
}
input.denominator:focus {
	background-color: WhiteSmoke;
}