diff --git a/build/pt-br.js b/build/pt-br.js
diff --git a/build/pt.js b/build/pt.js
diff --git a/build/ro.js b/build/ro.js
diff --git a/build/ru.js b/build/ru.js
diff --git a/build/sk.js b/build/sk.js
diff --git a/build/sl.js b/build/sl.js
diff --git a/build/sr.js b/build/sr.js
diff --git a/build/sv.js b/build/sv.js
diff --git a/build/tr.js b/build/tr.js
diff --git a/build/ua.js b/build/ua.js
diff --git a/build/uk.js b/build/uk.js
diff --git a/build/vi.js b/build/vi.js
diff --git a/build/zh-tw.js b/build/zh-tw.js
diff --git a/build/zh.js b/build/zh.js
diff --git a/css/_mixins&keyframes.styl b/css/_mixins&keyframes.styl
@@ -74,4 +74,12 @@ breakpoint(point, value = 0)
 
 @-webkit-keyframes rotate
   0%{-webkit-transform: rotate(0deg);}
-  100%{-webkit-transform: rotate(360deg);}
+  100%{-webkit-transform: rotate(360deg);}
+
+/*
+  Calculates container height based on --vh :root property, set using JavaScript.
+  Includes a fallback to 100vh for browsers that don't support custom properties.
+*/
+calculateHeight()
+  height 100vh
+  height calc(var(--vh, 1vh) * 100)