diff --git a/__tests__/fixtures/tailwind-output-important.css b/__tests__/fixtures/tailwind-output-important.css
index 08b505b59..8a955c812 100644
--- a/__tests__/fixtures/tailwind-output-important.css
+++ b/__tests__/fixtures/tailwind-output-important.css
@@ -422,11 +422,14 @@ ul {
  */
 
 /**
- * Use the system font stack as a sane default.
+ * 1. Use the system font stack as a sane default.
+ * 2. Use Tailwind's default "normal" line-height so the user isn't forced
+ * to override it to ensure consistency even when using the default theme.
  */
 
 html {
-  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; /* 1 */
+  line-height: 1.5; /* 2 */
 }
 
 /**
diff --git a/__tests__/fixtures/tailwind-output.css b/__tests__/fixtures/tailwind-output.css
index 333aba29d..88ae63789 100644
--- a/__tests__/fixtures/tailwind-output.css
+++ b/__tests__/fixtures/tailwind-output.css
@@ -422,11 +422,14 @@ ul {
  */
 
 /**
- * Use the system font stack as a sane default.
+ * 1. Use the system font stack as a sane default.
+ * 2. Use Tailwind's default "normal" line-height so the user isn't forced
+ * to override it to ensure consistency even when using the default theme.
  */
 
 html {
-  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; /* 1 */
+  line-height: 1.5; /* 2 */
 }
 
 /**
diff --git a/src/plugins/css/preflight.css b/src/plugins/css/preflight.css
index 55aa2f95d..f3a5d5591 100644
--- a/src/plugins/css/preflight.css
+++ b/src/plugins/css/preflight.css
@@ -70,11 +70,14 @@ ul {
  */
 
 /**
- * Use the system font stack as a sane default.
+ * 1. Use the system font stack as a sane default.
+ * 2. Use Tailwind's default "normal" line-height so the user isn't forced
+ * to override it to ensure consistency even when using the default theme.
  */
 
 html {
-  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; /* 1 */
+  line-height: 1.5; /* 2 */
 }
 
 /**