diff --git a/packages/frontend/src/components/MkDialog.vue b/packages/frontend/src/components/MkDialog.vue
index 160ea23e05..74cb534859 100644
--- a/packages/frontend/src/components/MkDialog.vue
+++ b/packages/frontend/src/components/MkDialog.vue
@@ -146,6 +146,7 @@ onBeforeUnmount(() => {
 <style lang="scss" module>
 .root {
 	position: relative;
+	margin: auto;
 	padding: 32px;
 	min-width: 320px;
 	max-width: 480px;
diff --git a/packages/frontend/src/components/MkModal.vue b/packages/frontend/src/components/MkModal.vue
index 9c11aa0640..6265e637d6 100644
--- a/packages/frontend/src/components/MkModal.vue
+++ b/packages/frontend/src/components/MkModal.vue
@@ -7,9 +7,9 @@
 	:leave-to-class="$style['transition_' + transitionName + '_leaveTo']"
 	:duration="transitionDuration" appear @after-leave="emit('closed')" @enter="emit('opening')" @after-enter="onOpened"
 >
-	<div v-show="manualShowing != null ? manualShowing : showing" v-hotkey.global="keymap" :class="[$style.root, { [$style.drawer]: type === 'drawer', [$style.dialog]: type === 'dialog' || type === 'dialog:top', [$style.popup]: type === 'popup' }]" :style="{ zIndex, pointerEvents: (manualShowing != null ? manualShowing : showing) ? 'auto' : 'none', '--transformOrigin': transformOrigin }">
+	<div v-show="manualShowing != null ? manualShowing : showing" v-hotkey.global="keymap" :class="[$style.root, { [$style.drawer]: type === 'drawer', [$style.dialog]: type === 'dialog', [$style.popup]: type === 'popup' }]" :style="{ zIndex, pointerEvents: (manualShowing != null ? manualShowing : showing) ? 'auto' : 'none', '--transformOrigin': transformOrigin }">
 		<div class="_modalBg" :class="[$style.bg, { [$style.bgTransparent]: transparentBg && (type === 'popup') }]" :style="{ zIndex }" @click="onBgClick" @mousedown="onBgClick" @contextmenu.prevent.stop="() => {}"></div>
-		<div ref="content" :class="[$style.content, { [$style.fixed]: fixed, [$style.top]: type === 'dialog:top' }]" :style="{ zIndex }" @click.self="onBgClick">
+		<div ref="content" :class="[$style.content, { [$style.fixed]: fixed }]" :style="{ zIndex }" @click.self="onBgClick">
 			<slot :max-height="maxHeight" :type="type"></slot>
 		</div>
 	</div>
@@ -33,7 +33,7 @@ function getFixedContainer(el: Element | null): Element | null {
 	}
 }
 
-type ModalTypes = 'popup' | 'dialog' | 'dialog:top' | 'drawer';
+type ModalTypes = 'popup' | 'dialog' | 'drawer';
 
 const props = withDefaults(defineProps<{
 	manualShowing?: boolean | null;
@@ -413,16 +413,6 @@ defineExpose({
 				-webkit-mask-image: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 16px, rgba(0,0,0,1) calc(100% - 16px), rgba(0,0,0,0) 100%);
 				mask-image: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 16px, rgba(0,0,0,1) calc(100% - 16px), rgba(0,0,0,0) 100%);
 			}
-
-			&:global > * {
-				margin: auto;
-			}
-
-			&.top {
-				&:global > * {
-					margin-top: 0;
-				}
-			}
 		}
 	}
 
@@ -450,10 +440,6 @@ defineExpose({
 			left: 0;
 			right: 0;
 			margin: auto;
-
-			&:global > * {
-				margin: auto;
-			}
 		}
 	}
 }
diff --git a/packages/frontend/src/components/MkPostFormDialog.vue b/packages/frontend/src/components/MkPostFormDialog.vue
index f71dbdfdab..6326c498d7 100644
--- a/packages/frontend/src/components/MkPostFormDialog.vue
+++ b/packages/frontend/src/components/MkPostFormDialog.vue
@@ -1,6 +1,6 @@
 <template>
-<MkModal ref="modal" :prefer-type="'dialog:top'" @click="modal.close()" @closed="onModalClosed()">
-	<MkPostForm ref="form" v-bind="props" autofocus freeze-after-posted @posted="onPosted" @cancel="modal.close()" @esc="modal.close()"/>
+<MkModal ref="modal" :prefer-type="'dialog'" @click="modal.close()" @closed="onModalClosed()">
+	<MkPostForm ref="form" style="margin: 0 auto auto auto;" v-bind="props" autofocus freeze-after-posted @posted="onPosted" @cancel="modal.close()" @esc="modal.close()"/>
 </MkModal>
 </template>
 
diff --git a/packages/frontend/src/components/MkUpdated.vue b/packages/frontend/src/components/MkUpdated.vue
index ba6b7853d4..eed7fa71f6 100644
--- a/packages/frontend/src/components/MkUpdated.vue
+++ b/packages/frontend/src/components/MkUpdated.vue
@@ -34,6 +34,7 @@ onMounted(() => {
 
 <style lang="scss" module>
 .root {
+	margin: auto;
 	position: relative;
 	padding: 32px;
 	min-width: 320px;
diff --git a/packages/frontend/src/components/MkWaitingDialog.vue b/packages/frontend/src/components/MkWaitingDialog.vue
index 984cdc5266..da835d21cc 100644
--- a/packages/frontend/src/components/MkWaitingDialog.vue
+++ b/packages/frontend/src/components/MkWaitingDialog.vue
@@ -37,6 +37,7 @@ watch(() => props.showing, () => {
 
 <style lang="scss" scoped>
 .iuyakobc {
+	margin: auto;
 	position: relative;
 	padding: 32px;
 	box-sizing: border-box;