diff --git a/app/assets/stylesheets/application.css b/app/assets/stylesheets/application.css
index 09773c709..cfa5477f4 100644
--- a/app/assets/stylesheets/application.css
+++ b/app/assets/stylesheets/application.css
@@ -1329,7 +1329,7 @@ div.flash.warning svg.icon-svg, .conflict svg.icon-svg {
 
 /***** Ajax indicator ******/
 #ajax-indicator {
-position: absolute; /* fixed not supported by IE */
+position: fixed;
 background-color:var(--oc-gray-2);
 border: 1px solid var(--oc-gray-5);
 top:35%;
@@ -1342,8 +1342,6 @@ z-index:100;
 opacity: 0.5;
 }
 
-html>body #ajax-indicator { position: fixed; }
-
 /***** Calendar *****/
 ul.cal {
   list-style: none;
@@ -1647,7 +1645,6 @@ div.wiki ul.toc {
   margin-left: 0;
   display: table
 }
-* html div.wiki ul.toc { width: 50%; } /* IE6 doesn't autosize div */
 
 div.wiki ul.toc.right { float: right; margin-left: 12px; margin-right: 0; width: auto; clear: right
 ;}
diff --git a/app/assets/stylesheets/context_menu.css b/app/assets/stylesheets/context_menu.css
index 2c86da880..d5377f668 100644
--- a/app/assets/stylesheets/context_menu.css
+++ b/app/assets/stylesheets/context_menu.css
@@ -29,11 +29,11 @@
   border:1px solid white;
   display: flex;
 }
-#context-menu li.folder ul { position:absolute; left:168px; /* IE6 */ top:-2px; max-height:300px; overflow:hidden; overflow-y: auto; }
+#context-menu li.folder ul { position:absolute; top:-2px; max-height:300px; overflow:hidden; overflow-y: auto; }
 #context-menu li.folder>ul { left:148px; }
 
 #context-menu.reverse-y li.folder>ul, #context-menu li.folder.up>ul { top:auto; bottom:0; }
-#context-menu.reverse-x li.folder ul { left:auto; right:168px; /* IE6 */ }
+#context-menu.reverse-x li.folder ul { left:auto; }
 #context-menu.reverse-x li.folder>ul { right:148px; }
 
 #context-menu.reverse-y li.folder.down>ul {
diff --git a/app/assets/stylesheets/rtl.css b/app/assets/stylesheets/rtl.css
index ec8a2e96f..6716d4dc1 100644
--- a/app/assets/stylesheets/rtl.css
+++ b/app/assets/stylesheets/rtl.css
@@ -22,7 +22,6 @@ h1, h2, h3, h4 {padding:2px 00px 1px 10px;}
 #main-menu li {float:right;margin:0px 0px 0px 2px;}
 
 #sidebar {float:left; padding-right: 20px; padding-left: 8px; border-left: 0; border-right: 1px solid var(--oc-gray-4);}
-* html #sidebar hr {left: auto; right: -6px;}
 
 #main.collapsedsidebar #sidebar {
   padding-left: 0;
@@ -44,7 +43,6 @@ h1, h2, h3, h4 {padding:2px 00px 1px 10px;}
 }
 
 #content {border-right:0 solid var(--oc-gray-4); border-left:1px solid var(--oc-gray-4);}
-* html #content{padding-right:0;}
 #main.nosidebar #content{border-left:0;}
 
 #login-form table {margin-left:auto; margin-right:auto;}