.tutorial-intro h1{
  margin-top:20px;
  margin-bottom:24px;
}
.tutorial-lead{
  max-width:640px;
  margin-bottom:0;
  color:var(--c-text-muted);
  font-size:var(--fs-lead);
  line-height:1.8;
}
.tutorial-flow .toc{
  position:static;
  margin-bottom:32px;
}
.tutorial-flow .prose h2{
  scroll-margin-top:24px;
}
.tutorial-flow .prose h3{
  scroll-margin-top:24px;
}
.tutorial-flow .prose section{
  min-width:0;
}
@media(max-width:640px){
  .tutorial-intro .cta-row .btn{
    flex:1 1 200px;
  }
}