.calculator {
    display: block;
    width: 800px;
    margin: 10px auto;
    background-color: #f9f9f9;
    box-shadow: 0px 3px 3px 3px #efeeee;
    padding: 20px;
}
.actions .btn-default {
    color: #333;
    background-color: #fff;
    border-color: #ccc;
    width: 15%;
}
.actions buttons, .actions select {
    font-size: 16px;
}

form.form-inline {
     display: block;
    padding: 10px;
    border: 1px solid #aaa;
    background-color: #ccf4ff;
    margin-bottom: 20px; 
}
form.form-inline.cpo {
    background-color: #a6ffbc;
}
.btn-default.cpo.active {
    background-color: green;
    color: #fff;
}
.btn-default.opo.active {
    background-color: blue;
    color: #fff;
}
.row {
	margin-left:0px;
}

.row.instruction {
    padding: 20px;
}
table.table.table-bordered {
    font-size: 18px;
    text-align: center;
}
table td {
    text-align: center;
}
table span {
	font-weight: bold;
}
legend {
    margin-bottom: -1px;
}

.calculator {
    display: block;
    width: 100%;
    margin: 10px auto 50px auto;
    background-color: #f9f9f9;
    box-shadow: 0px 3px 10px 3px #c5c5c5;
    padding: 40px;
}

.app_selection {
    padding: 10px 25px;
    border: 1px solid #aaa;
    background-color: #fafaefc0;
    font-size: 14px;
    float: left;
    width: 100%;
}

.diagram {
    border: 1px solid #aaa;
    background-color: #feffcc;
    float: left;
    margin-right: 10px;
    width: 100%;
}

@media (min-width:820px) {
    /* .app_selection {
        width: 50%;
    } */
    .calculator {
        width: 100%;
    }

    .diagram {
        width: 50%;
        margin-right: 0;
    }

    .app_selection {
        width: 50%;
    }
}

@media (min-width:1024px) {
    .calculator {
        width: 940px;
    }

    .app_selection {
        width: calc(50% - 10px);
    }
}