From efe181a207a2195845443551ab401940b9ccc2d9 Mon Sep 17 00:00:00 2001
From: Robert Lange <roberto.lange@gmail.com>
Date: Fri, 19 May 2017 15:05:55 +0200
Subject: [PATCH] insert css as first to allow easy css styling without
 important

---
 src/index.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index 21cad77dc..59a911994 100644
--- a/src/index.js
+++ b/src/index.js
@@ -407,11 +407,12 @@ class ReactTooltip extends Component {
    * in this way we can insert default css
    */
   setStyleHeader () {
-    if (!document.getElementsByTagName('head')[0].querySelector('style[id="react-tooltip"]')) {
+    const head = document.getElementsByTagName('head')[0]
+    if (!head.querySelector('style[id="react-tooltip"]')) {
       let tag = document.createElement('style')
       tag.id = 'react-tooltip'
       tag.innerHTML = cssStyle
-      document.getElementsByTagName('head')[0].appendChild(tag)
+      head.insertBefore(tag, head.firstChild)
     }
   }