#calc-tabs {height:90%;}
#calc-tabs .ui-tabs-panel {
    overflow: scroll;
    position: absolute;
    top: 52px;
    bottom: 0;
    left: 0;
    right: 0;
}
#calculators-container {margin: 0 10px 10px 10px;}
iframe {
    border: none;
    display: block;
    margin: 0 auto;
}