content.js

@@ -181,14 +181,23 @@
     if (document.getElementById(BTN_ID)) return;
     const unitsP = findTotalUnitsP();
     if (!unitsP) return;
+
+    const wrapper = document.createElement('div');
+    wrapper.style.display = 'flex';
+    wrapper.style.alignItems = 'center';
+    wrapper.style.justifyContent = 'space-between';
+    wrapper.style.margin = '10px 0';
+
     const btn = document.createElement('button');
     btn.id = BTN_ID;
     btn.type = 'button';
-    btn.className = 'btn green pull-right';
-    btn.style.margin = '10px 0';
+    btn.className = 'btn green';
     btn.innerHTML = '<i class="fa fa-download"></i> Download PDF';
     btn.addEventListener('click', onDownloadPdf);
-    unitsP.insertAdjacentElement('afterend', btn);
+
+    unitsP.parentNode.insertBefore(wrapper, unitsP);
+    wrapper.appendChild(btn);
+    wrapper.appendChild(unitsP);
   }
 
   function tryInjectButton() {