.sample-tutorial {
   position: relative;
   height: 100%;
   overflow: hidden;
 }
 
 .sample-spreadsheets {
  width: calc(100% - 300px);
  height: 100%;
  overflow: hidden;
  float: left;
 }
 
 .options-container {
  float: right;
  width: 300px;
  padding: 12px;
  height: 100%;
  box-sizing: border-box;
  background: #fbfbfb;
  overflow: auto;
 }
 
 body {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
 }
 
 .option-item{
  display: block;
  height: 20px;
  margin-bottom: 10px;
 }