.chart-background {

    max-width: 750px;

    max-height: 600px;

    min-width: 500px;

    min-height: 400px;

    margin: 10px;

    float: left;

    display: inline;

    background-color: #fff;

    opacity: .8;

}



.evaluation-chart {

    width: 750px;

    height: 600px;

    min-width: 500px;

    min-height: 400px;

    float: left;

    display: inline;

    padding: 15px;

    flex-flow: row wrap;

}



.tuning-middle {

    max-width: 1540px;

    min-width: 1540px;

}