languages-tabs.css

.gatsby-highlight {
  position: relative;
  -webkit-overflow-scrolling: touch;
}
.gatsby-highlight:not(:last-child) {
  margin-top: 2rem;
}
.gatsby-highlight pre[class*="language-"] {
  -webkit-overflow-scrolling: touch;
  padding: 1rem 0.75rem;
  border-radius: 0.25rem;
}
.gatsby-highlight pre[class*="language-"]:before {
  background: #000;
  border-radius: 0 0 0.25rem 0.25rem;
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.025rem;
  padding: 0.1rem 0.5rem;
  position: absolute;
  right: 1rem;
  text-align: right;
  text-transform: uppercase;
  top: 0;
}
.gatsby-highlight pre[class~="language-javascript"]:before,
.gatsby-highlight pre[class~="language-js"]:before {
  content: "js";
  background: #f7df1e;
  color: #000;
}
.gatsby-highlight pre[class~="language-html"]:before {
  content: "html";
  background: #005a9c;
  color: #fff;
}
.gatsby-highlight pre[class~="language-css"]:before {
  content: "css";
  background: #ff9800;
  color: #fff;
}