.sample-tutorial {
    position: relative;
    height: 100%;
    overflow: hidden;
}

.sample-spreadsheets {
   width: calc(100% - 280px);
   height: 100%;
   overflow: hidden;
   float: left;
}

.options-container {
    float: right;
    width: 280px;
    padding: 12px;
    height: 100%;
    box-sizing: border-box;
    background: #fbfbfb;
    overflow: auto;
}

.option-row {
    font-size: 14px;
    padding: 5px;
}
        
body {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}