.container {
	padding: 1em;
}

table {
    margin: 0 auto;
    border-collapse: collapse;
}

th {
    text-align: left;
    font-weight: bold;
    width: 35%;
}

td.middle {
    text-align: center;
    width: 25%;
}

td.right {
    text-align: right;
    width: 35%;
}

.input-error {
    background-color: #ffa1a1;
}

#calculate-result {
    font-weight: bold;
    text-align: center;
    font-size: 120%;
}

tr:nth-child(even) {
	background-color: #eee;
}