Dropped support for IE8 in CSS. (django#718)

Makefile

@@ -10,11 +10,9 @@ collectstatics: compile-scss
 
 compile-scss:
 	sassc $(SCSS)/output.scss $(STATIC)/css/output.css -s compressed
-	sassc $(SCSS)/output-ie.scss $(STATIC)/css/output-ie.css -s compressed
 
 compile-scss-debug:
 	sassc $(SCSS)/output.scss $(STATIC)/css/output.css --sourcemap
-	sassc $(SCSS)/output-ie.scss $(STATIC)/css/output-ie.css --sourcemap
 
 watch-scss:
 	watchmedo shell-command --patterns=*.scss --recursive --command="make compile-scss-debug" $(SCSS)

README.rst

@@ -179,13 +179,10 @@ SVG, webfonts.
 We're following `Mozilla's example <https://wiki.mozilla.org/Support/Browser_Support>`_
 when it comes to categorize browser support.
 
-- Any browser other than IE8 and lower as **A grade**. Which means everything
-  needs to work on those.
+- Desktop browsers, except as noted below, are **A grade**, meaning that
+  everything needs to work.
 
-- IE8 is **B grade**, meaning that some functionality may be disabled, visual
-  variations are acceptable but the content must work nevertheless.
-
-- IE below 8 is **not supported**.
+- IE < 11 is **not supported** (based on Microsoft's support).
 
 - Mobile browsers should be considered **B grade** as well.
   Mobile Safari, Firefox on Android and the Android Browser should support

djangoproject/scss/_style.scss

@@ -402,9 +402,6 @@ blockquote {
         max-width: 1400px;
         padding: 0 (32/768) * 100%;
     }
-    @include old-ie {
-        min-width: 768px;
-    }
 
     &.sidebar-right {
         .mdzr-boxshadow & {
@@ -1190,10 +1187,6 @@ blockquote {
             font-size: 1.2em;
         }
     }
-    @include old-ie {
-        display: inline;
-        zoom: 1;
-    }
     font-weight: 700;
     text-transform: uppercase;
 
@@ -1378,19 +1371,12 @@ blockquote {
 
     li {
         margin-top: 10px;
-        @include old-ie {
-            display: block;
-            line-height: 28px;
-        }
     }
 
     a {
         background: $green-light;
         color: $white;
         display: inline-block;
-        @include old-ie {
-            display: block;
-        }
         line-height: 1.2;
         margin: 0;
         padding: 8px 10px 5px;
@@ -2801,10 +2787,6 @@ div[role=main] {
 
     li{
         display: inline-block;
-        @include old-ie {
-            display: inline;
-            zoom: 1;
-        }
     }
     a {
         border: none;

djangoproject/scss/_utils.scss

@@ -42,37 +42,14 @@ $font-path: "../fonts/fira-mono";
 }
 
 // Media Queries Mixin (http://jakearchibald.github.com/sass-ie/)
-$fix-mqs: false !default;
 @mixin respond-min($width) {
-    @if $fix-mqs {
-        @if $fix-mqs >= $width {
-            @content;
-        }
-    }
-    @else {
-        @media screen and (min-width: $width) {
-            @content;
-        }
+    @media screen and (min-width: $width) {
+        @content;
     }
 }
 
 @mixin device-min($width) {
-    @if $fix-mqs {
-        @if $fix-mqs >= $width {
-            @content;
-        }
-    }
-    @else {
-        @media screen and (min-device-width: $width) {
-            @content;
-        }
-    }
-}
-
-// OLD IE Mixin (http://jakearchibald.github.com/sass-ie/)
-$old-ie: false !default;
-@mixin old-ie {
-    @if $old-ie {
+    @media screen and (min-device-width: $width) {
         @content;
     }
 }
@@ -128,9 +105,6 @@ html {
     &:after {
         clear: both;
     }
-    @include old-ie {
-        zoom: 1;
-    }
 }
 
 @mixin svg-image ( $name ) {

djangoproject/templates/base.html

@@ -20,12 +20,7 @@
 
     <title>{% block title %}The Web framework for perfectionists with deadlines{% endblock %} | Django</title>
 
-    <!--[if lte IE 8]>
-        <link rel="stylesheet" href="{% static "css/output-ie.css" %}" >
-     <![endif]-->
-    <!--[if gt IE 8]><!-->
-        <link rel="stylesheet" href="{% static "css/output.css" %}" >
-    <!--<![endif]-->
+    <link rel="stylesheet" href="{% static "css/output.css" %}" >
     <script src="{% static "js/lib/webfontloader/webfontloader.js" %}"></script>
     <script>
     WebFont.load({