diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index d9e50fbb7..85b6073d9 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -68,7 +68,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	<input v-show="useCw" ref="cwInputEl" v-model="cw" :class="$style.cw" :placeholder="i18n.ts.annotation" @keydown="onKeydown">
 	<div :class="[$style.textOuter, { [$style.withCw]: useCw }]">
 		<div v-if="channel" :class="$style.colorBar" :style="{ background: channel.color }"></div>
-		<textarea ref="textareaEl" v-model="text" :class="[$style.text]" :disabled="posting || posted" :readonly="textAreaReadOnly" :placeholder="placeholder" data-cy-post-form-text @keydown="onKeydown" @paste="onPaste" @compositionupdate="onCompositionUpdate" @compositionend="onCompositionEnd"/>
+		<textarea ref="textareaEl" v-model="text" :class="[$style.text]" :disabled="posting || posted" :readonly="textAreaReadOnly" :placeholder="placeholder" data-cy-post-form-text dir="auto" @keydown="onKeydown" @paste="onPaste" @compositionupdate="onCompositionUpdate" @compositionend="onCompositionEnd"/>
 		<div v-if="maxTextLength - textLength < 100" :class="['_acrylic', $style.textCount, { [$style.textOver]: textLength > maxTextLength }]">{{ maxTextLength - textLength }}</div>
 	</div>
 	<input v-show="withHashtags" ref="hashtagsInputEl" v-model="hashtags" :class="$style.hashtags" :placeholder="i18n.ts.hashtags" list="hashtags">
diff --git a/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.ts b/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.ts
index f8b5fcfed..df55d5426 100644
--- a/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.ts
+++ b/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.ts
@@ -335,67 +335,67 @@ export default function (props: MfmProps, { emit }: { emit: SetupContext<MfmEven
 			}
 
 			case 'center': {
-				return [h('div', {
+				return [h('bdi',h('div', {
 					style: 'text-align:center;',
-				}, genEl(token.children, scale))];
+				}, genEl(token.children, scale)))];
 			}
 
 			case 'url': {
-				return [h(MkUrl, {
+				return [h('bdi',h(MkUrl, {
 					key: Math.random(),
 					url: token.props.url,
 					rel: 'nofollow noopener',
-				})];
+				}))];
 			}
 
 			case 'link': {
-				return [h(MkLink, {
+				return [h('bdi',h(MkLink, {
 					key: Math.random(),
 					url: token.props.url,
 					rel: 'nofollow noopener',
-				}, genEl(token.children, scale, true))];
+				}, genEl(token.children, scale, true)))];
 			}
 
 			case 'mention': {
-				return [h(MkMention, {
+				return [h('bdi',h(MkMention, {
 					key: Math.random(),
 					host: (token.props.host == null && props.author && props.author.host != null ? props.author.host : token.props.host) ?? host,
 					username: token.props.username,
-				})];
+				}))];
 			}
 
 			case 'hashtag': {
-				return [h(MkA, {
+				return [h('bdi',h(MkA, {
 					key: Math.random(),
 					to: isNote ? `/tags/${encodeURIComponent(token.props.hashtag)}` : `/user-tags/${encodeURIComponent(token.props.hashtag)}`,
 					style: 'color:var(--hashtag);',
-				}, `#${token.props.hashtag}`)];
+				}, `#${token.props.hashtag}`))];
 			}
 
 			case 'blockCode': {
-				return [h(MkCode, {
+				return [h('bdi',h(MkCode, {
 					key: Math.random(),
 					code: token.props.code,
 					lang: token.props.lang ?? undefined,
-				})];
+				}))];
 			}
 
 			case 'inlineCode': {
-				return [h(MkCodeInline, {
+				return [h('bdi',h(MkCodeInline, {
 					key: Math.random(),
 					code: token.props.code,
-				})];
+				}))];
 			}
 
 			case 'quote': {
 				if (!props.nowrap) {
-					return [h('div', {
+					return [h('bdi',h('div', {
 						style: QUOTE_STYLE,
-					}, genEl(token.children, scale, true))];
+					}, genEl(token.children, scale, true)))];
 				} else {
-					return [h('span', {
+					return [h('bdi',h('span', {
 						style: QUOTE_STYLE,
-					}, genEl(token.children, scale, true))];
+					}, genEl(token.children, scale, true)))];
 				}
 			}
 
@@ -439,17 +439,17 @@ export default function (props: MfmProps, { emit }: { emit: SetupContext<MfmEven
 			}
 
 			case 'mathInline': {
-				return [h(MkFormula, {
+				return [h('bdi',h(MkFormula, {
 					formula: token.props.formula,
 					block: false,
-				})];
+				}))];
 			}
 
 			case 'mathBlock': {
-				return [h(MkFormula, {
+				return [h('bdi',h(MkFormula, {
 					formula: token.props.formula,
 					block: true,
-				})];
+				}))];
 			}
 
 			case 'search': {
@@ -472,8 +472,8 @@ export default function (props: MfmProps, { emit }: { emit: SetupContext<MfmEven
 		}
 	}).flat(Infinity) as (VNode | string)[];
 
-	return h('span', {
+	return h('bdi', h('span', {
 		// https://codeday.me/jp/qa/20190424/690106.html
 		style: props.nowrap ? 'white-space: pre; word-wrap: normal; overflow: hidden; text-overflow: ellipsis;' : 'white-space: pre-wrap;',
-	}, genEl(rootAst, props.rootScale ?? 1));
+	}, genEl(rootAst, props.rootScale ?? 1)));
 }
diff --git a/packages/frontend/src/style.scss b/packages/frontend/src/style.scss
index d87600996..8821f3cc7 100644
--- a/packages/frontend/src/style.scss
+++ b/packages/frontend/src/style.scss
@@ -557,6 +557,8 @@ rt {
 
 // MFM -----------------------------
 
+div > bdi, p > bdi { display: block }
+
 ._mfm_blur_ {
 	filter: blur(6px);
 	transition: filter 0.3s;