html`
<head>
<script type='text/x-thebe-config'>
thebeConfig = {
binderOptions: {repo:'sagemath/sage-binder-env',},
stripPrompts: {inPrompt:'sage: ',continuationPrompt:'....: ',
selector:'pre:contains("sage: ")',},
kernelOptions: {name:'sagemath',},
requestKernel: true}
</script>
<script src='https://unpkg.com/thebe@latest/lib/index.js'></script>
<script>window.onload=function() { thebelab.bootstrap(); };</script>
</head>
<style>
@import 'https://fonts.googleapis.com/css?family=Akronim';
h2,p {color:slategray; font-family:Akronim; font-size:120%; text-shadow:4px 4px 4px #aaa;}
</style>`