diff --git a/common/header.html b/common/header.html
index 566f3ae..7692236 100644
--- a/common/header.html
+++ b/common/header.html
@@ -1,11 +1,10 @@
-<script type="text/discourse-plugin" version="0.1">
+<script type="text/discourse-plugin"
+        version="0.1">
   const minimumOffset = require("discourse/lib/offset-calculator").minimumOffset;
   const { iconHTML } = require("discourse-common/lib/icon-library");
   const { run } = Ember;
 
   const mobileView = $("html").hasClass("mobile-view");
-  const isSafari = !!navigator.userAgent.match(/Version\/[\d\.]+.*Safari/);
-  const scrollElemnt = isSafari ? "body" : "html";
 
   const linkIcon = iconHTML("hashtag");
   const closeIcon = iconHTML("times");
@@ -168,7 +167,7 @@
       },
 
       highlightItemsOnScroll: self => {
-        $(scrollElemnt)
+        $('html, body')
           .promise()
           .done(function() {
             const winScrollTop = $(window).scrollTop();
@@ -226,21 +225,17 @@
           .not(elem)
           .not(elem.parent(".d-toc-subheading:has(.d-toc-active)"));
 
-        return isSafari
-          ? target.fadeOut(TOC_ANIMATION_SPEED)
-          : target.slideUp(TOC_ANIMATION_SPEED);
+        return target.slideUp(TOC_ANIMATION_SPEED);
       },
 
       show: function(elem) {
-        return isSafari
-          ? elem.fadeIn(TOC_ANIMATION_SPEED)
-          : elem.slideDown(TOC_ANIMATION_SPEED);
+        return elem.slideDown(TOC_ANIMATION_SPEED);
       },
 
       scrollTo: function(elem) {
         const currentDiv = $(`[data-d-toc="${elem.attr("data-d-toc")}"]`);
 
-        $(scrollElemnt).animate(
+        $('html, body').animate(
           {
             scrollTop: `${currentDiv.offset().top - minimumOffset()}`
           },
@@ -391,4 +386,4 @@
       }
     });
   }
-</script>
+</script>
\ No newline at end of file