.sh-calc-param {
    text-align: center;
}

.sh-calc-param-b1 {
    display: inline-block;
    text-align: center;
    color: #333;
    font-size: 16px;
}

.sh-calc-param-b2 {
    display: block;
    margin: 10px 0;
}

.sh-calc-param-b3 {
    display: inline-block;
    margin: 10px 10px 10px 0;
}

.sh-calc-param-b4 {
    float: right;
}

.sh-calc-param select {
    height: 34px;
    padding: 6px 12px;
    border-radius: 3px;
    border: 1px solid #ddd;
    font-size: 16px;
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
    box-sizing: border-box;
    color: #555;
}

.sh-calc-param select option {
    padding: 5px;
}

.sh-calc-res img {
    display: block;
    margin: 0 auto;
}

.sh-calc-res table {
    margin-bottom: 15px;
    background-color: #ccc;
    width: 100%;
}

.sh-calc-res .th td {
    background-color: #f3f3f3;
	font-weight:bold;
	padding:10px;
}

.sh-calc-res td {
    background-color: #fff;
}

.middle {
    position: relative;
}

.middle:after {
    display: table;
    clear: both;
    content: '';
}