Ensure the print iframe doesn't overlap the page (MatthewHerbst#556)

Author: MatthewHerbst

src/index.tsx

@@ -218,8 +218,8 @@ export default class ReactToPrint extends React.Component<IReactToPrintProps> {
         printWindow.width = `${document.documentElement.clientWidth}px`;
         printWindow.height = `${document.documentElement.clientHeight}px`;
         printWindow.style.position = "absolute";
-        printWindow.style.top = "-1000px";
-        printWindow.style.left = "-1000px";
+        printWindow.style.top = `-${document.documentElement.clientHeight + 100}px`;
+        printWindow.style.left = `-${document.documentElement.clientWidth + 100}px`;
         printWindow.id = "printWindow";
         // Ensure we set a DOCTYPE on the iframe's document
         // https://github.com/gregnb/react-to-print/issues/459