[refactor] Refactored the loader; inlined the customizations

css/_mixins.scss

@@ -1,3 +1,11 @@
+@mixin animation($property) {
+    -webkit-animation: $property;
+    -moz-animation: $property;
+    -ms-animation: $property;
+    -o-animation: $property;
+    animation: $property;
+}
+
 @mixin borderRadius($property) {
     -webkit-border-radius: $property;
     -moz-border-radius: $property;
@@ -9,3 +17,38 @@
     -moz-box-shadow: $value;
     box-shadow: $value;
 }
+
+@mixin keyframes($animationName) {
+    @-webkit-keyframes #{$animationName} {
+        $browser: '-webkit-' !global;
+        @content;
+    }
+
+    @-moz-keyframes #{$animationName} {
+        $browser: '-moz-' !global;
+        @content;
+    }
+
+    @-ms-keyframes #{$animationName} {
+        $browser: '-ms-' !global;
+        @content;
+    }
+
+    @-o-keyframes #{$animationName} {
+        $browser: '-o-' !global;
+        @content;
+    }
+
+    @keyframes #{$animationName} {
+        $browser: '' !global;
+        @content;
+    }
+}
+
+@mixin transform($property) {
+    -webkit-transform: $property;
+    -moz-transform: $property;
+    -ms-transform: $property;
+    -o-transform: $property;
+    transform: $property;
+}