diff --git a/packages/frontend/src/components/MkCode.core.vue b/packages/frontend/src/components/MkCode.core.vue
index 36c08a8c64..76ff6001de 100644
--- a/packages/frontend/src/components/MkCode.core.vue
+++ b/packages/frontend/src/components/MkCode.core.vue
@@ -142,7 +142,7 @@ watch(() => props.lang, (to) => {
 		margin: 0;
 		border-radius: var(--MI-radius-sm);
 		border: none;
-		min-height: 130px;
+		min-height: 9.29em;
 		pointer-events: none;
 		min-width: calc(100% - 24px);
 		height: 100%;
diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index a650365a28..3df78712d5 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -1497,7 +1497,7 @@ defineExpose({
 	max-width: 100%;
 	min-width: 100%;
 	width: 100%;
-	min-height: 90px;
+	min-height: 5.85em;
 	height: 100%;
 }
 
diff --git a/packages/frontend/src/components/MkTextarea.vue b/packages/frontend/src/components/MkTextarea.vue
index e36069c50e..1e21d89b83 100644
--- a/packages/frontend/src/components/MkTextarea.vue
+++ b/packages/frontend/src/components/MkTextarea.vue
@@ -174,7 +174,7 @@ onUnmounted(() => {
 	width: 100%;
 	min-width: 100%;
 	max-width: 100%;
-	min-height: 130px;
+	min-height: 9.29em;
 	margin: 0;
 	padding: 12px;
 	font: inherit;
@@ -211,7 +211,7 @@ onUnmounted(() => {
 
 .tall {
 	> .textarea {
-		min-height: 200px;
+		min-height: 14.29em;
 	}
 }