Updated web script

Used emoji for clipboard icons, added persistent scroll to top button with proper smooth scrolling.

static-parts/index-end.html

@@ -1,6 +1,6 @@
+        <button class="scroll-to-top">&uarr;</button>
         <footer>
           <p style="display: inline-block;"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br/>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> is licensed by <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a>.<br/>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed by <a href="https://opensource.org/licenses/MIT">The MIT License</a><br/>Built with the <a href="https://minicss.org">mini.css framework</a>.</p>
-          <a href="#top"><span style="display: inline-block;float: right;padding-right: 2em;">Back to top</span></a>
         </footer>
       </main>
     </div>

static-parts/index-start.html

@@ -27,6 +27,13 @@
           x.style.display = matchingTags.includes(x.innerText.toLowerCase()) ? '' : 'none';
         })
       }
+      function scrollToTop(){
+        const c = document.querySelector('main').scrollTop;
+        if (c > 0) {
+          window.requestAnimationFrame(scrollToTop);
+          document.querySelector('main').scrollTo(0, c - c / 4);
+        }
+      };
       function loader() {
         registerClickListener();
       }
@@ -54,6 +61,9 @@
               },300);
             },1700);
           }
+          else if (event.target.classList.contains('scroll-to-top')){
+            scrollToTop();
+          }
         }, false);
       }
     </script>