Position hexes with CSS; move map styles into separate file

src/index.js

@@ -704,9 +704,10 @@ window.addEventListener('load', () => {
 
       ptGrp.querySelectorAll(s).forEach(p => p.classList.add('active'));
     };
-  }
+  };
 
-  POINTS.forEach((row, index) => row.forEach(([x, y]) => {
+  // POINTS.forEach((row, index) => row.forEach(([x, y]) => {
+  [].forEach(() => row.forEach(([x, y]) => {
     let group = svg.querySelector(`g[data-x="${x}"][data-y="${y}"]`);
     let point = group.querySelector(`use[href="#point"]`);
 
@@ -1100,19 +1101,4 @@ window.addEventListener('load', () => {
       }
     }
   });
-
-  function save(filename, data) {
-    const blob = new Blob([data], {type: 'text/csv'});
-    if(window.navigator.msSaveOrOpenBlob) {
-        window.navigator.msSaveBlob(blob, filename);
-    }
-    else{
-        const elem = window.document.createElement('a');
-        elem.href = window.URL.createObjectURL(blob);
-        elem.download = filename;
-        document.body.appendChild(elem);
-        elem.click();
-        document.body.removeChild(elem);
-    }
-  }
 });