diff --git a/__tests__/fixtures/tailwind-output.css b/__tests__/fixtures/tailwind-output.css
index c447919e7..52961f4d5 100644
--- a/__tests__/fixtures/tailwind-output.css
+++ b/__tests__/fixtures/tailwind-output.css
@@ -480,7 +480,7 @@ textarea::placeholder {
 }
 
 button,
-[role=button] {
+[role="button"] {
   cursor: pointer;
 }
 
diff --git a/css/preflight.css b/css/preflight.css
index e028bba5b..aad57f36d 100644
--- a/css/preflight.css
+++ b/css/preflight.css
@@ -464,7 +464,8 @@ textarea {
 }
 
 img {
-  max-width: 100%; height: auto;
+  max-width: 100%;
+  height: auto;
 }
 
 input::placeholder,
@@ -474,7 +475,7 @@ textarea::placeholder {
 }
 
 button,
-[role=button] {
+[role="button"] {
   cursor: pointer;
 }