diff --git a/lib/sizes/all.css b/lib/sizes/all.css
index b9f6c8b..12c704e 100644
--- a/lib/sizes/all.css
+++ b/lib/sizes/all.css
@@ -11,7 +11,7 @@
 }
 
 .r-all--1of9 {
-  width: calc(100% * 1/ 9);
+  width: calc(100% * 1 / 9);
 }
 
 .r-all--1of8 {
@@ -108,7 +108,7 @@
 }
 
 .r-all--5of9 {
-  width: calc(100% 5 / 9);
+  width: calc(100% * 5 / 9);
 }
 
 .r-all--4of7 {
@@ -176,7 +176,7 @@
 }
 
 .r-all--6of7 {
-  width: calc(100% 6 / 7);
+  width: calc(100% * 6 / 7);
 }
 
 .r-all--7of8 {
diff --git a/lib/sizes/maxL.css b/lib/sizes/maxL.css
index e3030a5..ac8a7dc 100644
--- a/lib/sizes/maxL.css
+++ b/lib/sizes/maxL.css
@@ -110,7 +110,7 @@
   }
 
   .r-maxL--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-maxL--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-maxL--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-maxL--7of8 {
diff --git a/lib/sizes/maxM.css b/lib/sizes/maxM.css
index d43c194..27e0acb 100644
--- a/lib/sizes/maxM.css
+++ b/lib/sizes/maxM.css
@@ -13,7 +13,7 @@
   }
 
   .r-maxM--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-maxM--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-maxM--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-maxM--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-maxM--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-maxM--7of8 {
diff --git a/lib/sizes/maxS.css b/lib/sizes/maxS.css
index 102cca7..163639f 100644
--- a/lib/sizes/maxS.css
+++ b/lib/sizes/maxS.css
@@ -13,7 +13,7 @@
   }
 
   .r-maxS--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-maxS--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-maxS--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-maxS--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-maxS--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-maxS--7of8 {
diff --git a/lib/sizes/maxXL.css b/lib/sizes/maxXL.css
index eb83f1d..4ba29d2 100644
--- a/lib/sizes/maxXL.css
+++ b/lib/sizes/maxXL.css
@@ -13,7 +13,7 @@
   }
 
   .r-maxXL--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-maxXL--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-maxXL--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-maxXL--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-maxXL--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-maxXL--7of8 {
diff --git a/lib/sizes/minL.css b/lib/sizes/minL.css
index 11b6a64..01e334b 100644
--- a/lib/sizes/minL.css
+++ b/lib/sizes/minL.css
@@ -13,7 +13,7 @@
   }
 
   .r-minL--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-minL--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-minL--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-minL--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-minL--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-minL--7of8 {
diff --git a/lib/sizes/minM.css b/lib/sizes/minM.css
index d723185..c692319 100644
--- a/lib/sizes/minM.css
+++ b/lib/sizes/minM.css
@@ -13,7 +13,7 @@
   }
 
   .r-minM--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-minM--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-minM--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-minM--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-minM--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-minM--7of8 {
diff --git a/lib/sizes/minS.css b/lib/sizes/minS.css
index 741f317..96627d0 100644
--- a/lib/sizes/minS.css
+++ b/lib/sizes/minS.css
@@ -13,7 +13,7 @@
   }
 
   .r-minS--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-minS--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-minS--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-minS--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-minS--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-minS--7of8 {
diff --git a/lib/sizes/minXL.css b/lib/sizes/minXL.css
index 49498ae..5744164 100644
--- a/lib/sizes/minXL.css
+++ b/lib/sizes/minXL.css
@@ -13,7 +13,7 @@
   }
 
   .r-minXL--1of9 {
-    width: calc(100% * 1/ 9);
+    width: calc(100% * 1 / 9);
   }
 
   .r-minXL--1of8 {
@@ -110,7 +110,7 @@
   }
 
   .r-minXL--5of9 {
-    width: calc(100% 5 / 9);
+    width: calc(100% * 5 / 9);
   }
 
   .r-minXL--4of7 {
@@ -178,7 +178,7 @@
   }
 
   .r-minXL--6of7 {
-    width: calc(100% 6 / 7);
+    width: calc(100% * 6 / 7);
   }
 
   .r-minXL--7of8 {