style.css

p.caption {
  color: #777;
  margin-top: 10px;
}
p code {
  white-space: inherit;
}
pre {
  word-break: normal;
  word-wrap: normal;
  box-shadow: 5px 5px 10px 0px lightgrey;
}
pre code {
  white-space: inherit;
}

pre.sourceCode.r{
  border-left: solid #F0F0F0 2px !important;
  box-shadow: inset 0px -5px 10px 0px #FAFAFA !important;
  margin-bottom: 0px !important;
}

pre.sourceCode.r:hover {
  border-left: solid #4070a0 2px !important;
  transition: all 0.3s ease !important;
}

div.sourceCode{
  box-shadow: 5px 5px 10px 0px lightgrey;
  overflow: hidden  !important;
  margin-bottom: 10px !important;
}

pre.outputcode{
  margin-top: -10px !important;
  padding-top: -10px !important;
  line-height: 1.2;
  background-color: #F0F0F0 !important;
  box-shadow: 5px 5px 10px 0px lightgrey;
  font-style: italic;
}

/*

@media screen and (min-width: 800px) {
  pre {
    overflow: hidden !important;
  }
  pre:hover {
    overflow-x: auto !important;
  }
}
*/