Here it is with scrolling: data:text/html,<script>a=()=>{document.write(Math.random()<0.5?'\u2571':'\u2572');document.body.style.cssText="margin:0;padding:0;fo

Here it is with scrolling: data:text/html,<script>a=()=>{document.write(Math.random()<0.5?'\u2571':'\u2572');document.body.style.cssText="margin:0;padding:0;font-family:monospace;word-break:break-word;font-size:3em;letter-spacing:0;font-stretch:ultra-expanded"};update=()=>{a();window.requestAnimationFrame(update);window.scroll(0,window.scrollMaxY)};update()</script>