/* Overrides of notebook CSS for static HTML export */
.reveal {
  font-size: 160%;
  overflow-y: scroll;
}
.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal h5,
.reveal h6 {
  text-transform: none;}
.reveal pre {
  width: inherit;
  padding: 0.4em;
  margin: 0px;
  font-family: monospace, sans-serif;
  font-size: 80%;
  box-shadow: 0px 0px 0px rgba(0, 0, 0, 0);
}
.reveal pre code {
  padding: 0px;
}
.reveal section img {
  border: 0px solid black;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0);
}
.reveal i {
  font-style: normal;
  font-family: FontAwesome;
  font-size: 2em;
}
.reveal .slides {
  text-align: left;
}
.reveal.fade {
  opacity: 1;
}
.reveal .progress {
  position: static;
}
div.input_area {
  padding: 0.06em;
}
div.code_cell {
  background-color: transparent;
}
div.prompt {
  width: 11ex;
  padding: 0.4em;
  margin: 0px;
  font-family: monospace, sans-serif;
  font-size: 80%;
  text-align: right;
}
div.output_area pre {
  font-family: monospace, sans-serif;
  font-size: 80%;
}
div.output_prompt {
  /* 5px right shift to account for margin in parent container */
  margin: 5px 5px 0 0;
}
div.text_cell.rendered .rendered_html {
  /* The H1 height seems miscalculated, we are just hidding the scrollbar */
  overflow-y: hidden;
}
a.anchor-link {
  /* There is still an anchor, we are only hidding it */
  display: none;
}
.rendered_html p {
  text-align: inherit;
}
<!-- custom CSS code -->

.code-btn:link, .code-btn:visited {
    background-color: #e7e7e7;
    color: black;
    padding: 1em 1em;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}


.code-btn:hover, .code-btn:active {
    background-color: #a0a0a0;
}