diff --git a/__tests__/fixtures/tailwind-output.css b/__tests__/fixtures/tailwind-output.css
index 23f3cde52..0d3dac35d 100644
--- a/__tests__/fixtures/tailwind-output.css
+++ b/__tests__/fixtures/tailwind-output.css
@@ -1265,6 +1265,10 @@ button,
   background-repeat: repeat-y;
 }
 
+.bg-auto {
+  background-size: auto;
+}
+
 .bg-cover {
   background-size: cover;
 }
@@ -5148,6 +5152,10 @@ button,
     background-repeat: repeat-y;
   }
 
+  .sm\:bg-auto {
+    background-size: auto;
+  }
+
   .sm\:bg-cover {
     background-size: cover;
   }
@@ -9024,6 +9032,10 @@ button,
     background-repeat: repeat-y;
   }
 
+  .md\:bg-auto {
+    background-size: auto;
+  }
+
   .md\:bg-cover {
     background-size: cover;
   }
@@ -12900,6 +12912,10 @@ button,
     background-repeat: repeat-y;
   }
 
+  .lg\:bg-auto {
+    background-size: auto;
+  }
+
   .lg\:bg-cover {
     background-size: cover;
   }
@@ -16776,6 +16792,10 @@ button,
     background-repeat: repeat-y;
   }
 
+  .xl\:bg-auto {
+    background-size: auto;
+  }
+
   .xl\:bg-cover {
     background-size: cover;
   }