diff --git a/src/web/app/ch/tags/channel.tag b/src/web/app/ch/tags/channel.tag
index a706a247f5..d71837af4e 100644
--- a/src/web/app/ch/tags/channel.tag
+++ b/src/web/app/ch/tags/channel.tag
@@ -246,7 +246,7 @@
 	<div class="actions">
 		<button @click="selectFile">%fa:upload%%i18n:ch.tags.mk-channel-form.upload%</button>
 		<button @click="drive">%fa:cloud%%i18n:ch.tags.mk-channel-form.drive%</button>
-		<button class={ wait: wait } ref="submit" disabled={ wait || (refs.text.value.length == 0) } @click="post">
+		<button :class="{ wait: wait }" ref="submit" disabled={ wait || (refs.text.value.length == 0) } @click="post">
 			<virtual v-if="!wait">%fa:paper-plane%</virtual>{ wait ? '%i18n:ch.tags.mk-channel-form.posting%' : '%i18n:ch.tags.mk-channel-form.post%' }<mk-ellipsis v-if="wait"/>
 		</button>
 	</div>
diff --git a/src/web/app/common/tags/poll.tag b/src/web/app/common/tags/poll.vue
similarity index 58%
rename from src/web/app/common/tags/poll.tag
rename to src/web/app/common/tags/poll.vue
index c0605d890b..638fa1cbe4 100644
--- a/src/web/app/common/tags/poll.tag
+++ b/src/web/app/common/tags/poll.vue
@@ -1,6 +1,7 @@
-<mk-poll data-is-voted={ isVoted }>
+<template>
+<div :data-is-voted="isVoted">
 	<ul>
-		<li each={ poll.choices } @click="vote.bind(null, id)" class={ voted: voted } title={ !parent.isVoted ? '%i18n:common.tags.mk-poll.vote-to%'.replace('{}', text) : '' }>
+		<li v-for="choice in poll.choices" @click="vote.bind(choice.id)" :class="{ voted: choice.voted }" title={ !parent.isVoted ? '%i18n:common.tags.mk-poll.vote-to%'.replace('{}', text) : '' }>
 			<div class="backdrop" style={ 'width:' + (parent.result ? (votes / parent.total * 100) : 0) + '%' }></div>
 			<span>
 				<virtual v-if="is_voted">%fa:check%</virtual>
@@ -15,6 +16,51 @@
 		<a v-if="!isVoted" @click="toggleResult">{ result ? '%i18n:common.tags.mk-poll.vote%' : '%i18n:common.tags.mk-poll.show-result%' }</a>
 		<span v-if="isVoted">%i18n:common.tags.mk-poll.voted%</span>
 	</p>
+</div>
+</template>
+
+<script lang="typescript">
+	this.mixin('api');
+
+	this.init = post => {
+		this.post = post;
+		this.poll = this.post.poll;
+		this.total = this.poll.choices.reduce((a, b) => a + b.votes, 0);
+		this.isVoted = this.poll.choices.some(c => c.is_voted);
+		this.result = this.isVoted;
+		this.update();
+	};
+
+	this.init(this.opts.post);
+
+	this.toggleResult = () => {
+		this.result = !this.result;
+	};
+
+	this.vote = id => {
+		if (this.poll.choices.some(c => c.is_voted)) return;
+		this.api('posts/polls/vote', {
+			post_id: this.post.id,
+			choice: id
+		}).then(() => {
+			this.poll.choices.forEach(c => {
+				if (c.id == id) {
+					c.votes++;
+					c.is_voted = true;
+				}
+			});
+			this.update({
+				poll: this.poll,
+				isVoted: true,
+				result: true,
+				total: this.total + 1
+			});
+		});
+	};
+</script>
+
+<mk-poll data-is-voted={ isVoted }>
+
 	<style lang="stylus" scoped>
 		:scope
 			display block
@@ -67,43 +113,5 @@
 						background transparent
 
 	</style>
-	<script lang="typescript">
-		this.mixin('api');
 
-		this.init = post => {
-			this.post = post;
-			this.poll = this.post.poll;
-			this.total = this.poll.choices.reduce((a, b) => a + b.votes, 0);
-			this.isVoted = this.poll.choices.some(c => c.is_voted);
-			this.result = this.isVoted;
-			this.update();
-		};
-
-		this.init(this.opts.post);
-
-		this.toggleResult = () => {
-			this.result = !this.result;
-		};
-
-		this.vote = id => {
-			if (this.poll.choices.some(c => c.is_voted)) return;
-			this.api('posts/polls/vote', {
-				post_id: this.post.id,
-				choice: id
-			}).then(() => {
-				this.poll.choices.forEach(c => {
-					if (c.id == id) {
-						c.votes++;
-						c.is_voted = true;
-					}
-				});
-				this.update({
-					poll: this.poll,
-					isVoted: true,
-					result: true,
-					total: this.total + 1
-				});
-			});
-		};
-	</script>
 </mk-poll>
diff --git a/src/web/app/common/tags/signin.tag b/src/web/app/common/tags/signin.tag
index 441a8ec56c..76a55c7e05 100644
--- a/src/web/app/common/tags/signin.tag
+++ b/src/web/app/common/tags/signin.tag
@@ -1,5 +1,5 @@
 <mk-signin>
-	<form class={ signing: signing } onsubmit={ onsubmit }>
+	<form :class="{ signing: signing }" onsubmit={ onsubmit }>
 		<label class="user-name">
 			<input ref="username" type="text" pattern="^[a-zA-Z0-9-]+$" placeholder="%i18n:common.tags.mk-signin.username%" autofocus="autofocus" required="required" oninput={ oninput }/>%fa:at%
 		</label>
diff --git a/src/web/app/desktop/tags/big-follow-button.tag b/src/web/app/desktop/tags/big-follow-button.tag
index 6d43e4abeb..09b587c379 100644
--- a/src/web/app/desktop/tags/big-follow-button.tag
+++ b/src/web/app/desktop/tags/big-follow-button.tag
@@ -1,5 +1,5 @@
 <mk-big-follow-button>
-	<button class={ wait: wait, follow: !user.is_following, unfollow: user.is_following } v-if="!init" @click="onclick" disabled={ wait } title={ user.is_following ? 'フォロー解除' : 'フォローする' }>
+	<button :class="{ wait: wait, follow: !user.is_following, unfollow: user.is_following }" v-if="!init" @click="onclick" disabled={ wait } title={ user.is_following ? 'フォロー解除' : 'フォローする' }>
 		<span v-if="!wait && user.is_following">%fa:minus%フォロー解除</span>
 		<span v-if="!wait && !user.is_following">%fa:plus%フォロー</span>
 		<virtual v-if="wait">%fa:spinner .pulse .fw%</virtual>
diff --git a/src/web/app/desktop/tags/drive/browser.tag b/src/web/app/desktop/tags/drive/browser.tag
index 15c9bb5698..9fdb270546 100644
--- a/src/web/app/desktop/tags/drive/browser.tag
+++ b/src/web/app/desktop/tags/drive/browser.tag
@@ -1,7 +1,7 @@
 <mk-drive-browser>
 	<nav>
 		<div class="path" oncontextmenu={ pathOncontextmenu }>
-			<mk-drive-browser-nav-folder class={ current: folder == null } folder={ null }/>
+			<mk-drive-browser-nav-folder :class="{ current: folder == null }" folder={ null }/>
 			<virtual each={ folder in hierarchyFolders }>
 				<span class="separator">%fa:angle-right%</span>
 				<mk-drive-browser-nav-folder folder={ folder }/>
diff --git a/src/web/app/desktop/tags/follow-button.tag b/src/web/app/desktop/tags/follow-button.tag
index 843774ad07..9a01b08316 100644
--- a/src/web/app/desktop/tags/follow-button.tag
+++ b/src/web/app/desktop/tags/follow-button.tag
@@ -1,5 +1,5 @@
 <mk-follow-button>
-	<button class={ wait: wait, follow: !user.is_following, unfollow: user.is_following } v-if="!init" @click="onclick" disabled={ wait } title={ user.is_following ? 'フォロー解除' : 'フォローする' }>
+	<button :class="{ wait: wait, follow: !user.is_following, unfollow: user.is_following }" v-if="!init" @click="onclick" disabled={ wait } title={ user.is_following ? 'フォロー解除' : 'フォローする' }>
 		<virtual v-if="!wait && user.is_following">%fa:minus%</virtual>
 		<virtual v-if="!wait && !user.is_following">%fa:plus%</virtual>
 		<virtual v-if="wait">%fa:spinner .pulse .fw%</virtual>
diff --git a/src/web/app/desktop/tags/post-detail.tag b/src/web/app/desktop/tags/post-detail.tag
index 34b34b6a58..2225733f7a 100644
--- a/src/web/app/desktop/tags/post-detail.tag
+++ b/src/web/app/desktop/tags/post-detail.tag
@@ -49,7 +49,7 @@
 				<button @click="repost" title="Repost">
 					%fa:retweet%<p class="count" v-if="p.repost_count > 0">{ p.repost_count }</p>
 				</button>
-				<button class={ reacted: p.my_reaction != null } @click="react" ref="reactButton" title="リアクション">
+				<button :class="{ reacted: p.my_reaction != null }" @click="react" ref="reactButton" title="リアクション">
 					%fa:plus%<p class="count" v-if="p.reactions_count > 0">{ p.reactions_count }</p>
 				</button>
 				<button @click="menu" ref="menuButton">
diff --git a/src/web/app/desktop/tags/post-form.tag b/src/web/app/desktop/tags/post-form.tag
index c2da858857..358deb82f7 100644
--- a/src/web/app/desktop/tags/post-form.tag
+++ b/src/web/app/desktop/tags/post-form.tag
@@ -1,6 +1,6 @@
 <mk-post-form ondragover={ ondragover } ondragenter={ ondragenter } ondragleave={ ondragleave } ondrop={ ondrop }>
 	<div class="content">
-		<textarea class={ with: (files.length != 0 || poll) } ref="text" disabled={ wait } oninput={ update } onkeydown={ onkeydown } onpaste={ onpaste } placeholder={ placeholder }></textarea>
+		<textarea :class="{ with: (files.length != 0 || poll) }" ref="text" disabled={ wait } oninput={ update } onkeydown={ onkeydown } onpaste={ onpaste } placeholder={ placeholder }></textarea>
 		<div class="medias { with: poll }" show={ files.length != 0 }>
 			<ul ref="media">
 				<li each={ files } data-id={ id }>
@@ -18,7 +18,7 @@
 	<button class="kao" title="%i18n:desktop.tags.mk-post-form.insert-a-kao%" @click="kao">%fa:R smile%</button>
 	<button class="poll" title="%i18n:desktop.tags.mk-post-form.create-poll%" @click="addPoll">%fa:chart-pie%</button>
 	<p class="text-count { over: refs.text.value.length > 1000 }">{ '%i18n:desktop.tags.mk-post-form.text-remain%'.replace('{}', 1000 - refs.text.value.length) }</p>
-	<button class={ wait: wait } ref="submit" disabled={ wait || (refs.text.value.length == 0 && files.length == 0 && !poll　&& !repost) } @click="post">
+	<button :class="{ wait: wait }" ref="submit" disabled={ wait || (refs.text.value.length == 0 && files.length == 0 && !poll　&& !repost) } @click="post">
 		{ wait ? '%i18n:desktop.tags.mk-post-form.posting%' : submitText }<mk-ellipsis v-if="wait"/>
 	</button>
 	<input ref="file" type="file" accept="image/*" multiple="multiple" tabindex="-1" onchange={ changeFile }/>
diff --git a/src/web/app/desktop/tags/settings.tag b/src/web/app/desktop/tags/settings.tag
index 3288ba7217..191d1d754a 100644
--- a/src/web/app/desktop/tags/settings.tag
+++ b/src/web/app/desktop/tags/settings.tag
@@ -1,15 +1,15 @@
 <mk-settings>
 	<div class="nav">
-		<p class={ active: page == 'profile' } onmousedown={ setPage.bind(null, 'profile') }>%fa:user .fw%%i18n:desktop.tags.mk-settings.profile%</p>
-		<p class={ active: page == 'web' } onmousedown={ setPage.bind(null, 'web') }>%fa:desktop .fw%Web</p>
-		<p class={ active: page == 'notification' } onmousedown={ setPage.bind(null, 'notification') }>%fa:R bell .fw%通知</p>
-		<p class={ active: page == 'drive' } onmousedown={ setPage.bind(null, 'drive') }>%fa:cloud .fw%%i18n:desktop.tags.mk-settings.drive%</p>
-		<p class={ active: page == 'mute' } onmousedown={ setPage.bind(null, 'mute') }>%fa:ban .fw%%i18n:desktop.tags.mk-settings.mute%</p>
-		<p class={ active: page == 'apps' } onmousedown={ setPage.bind(null, 'apps') }>%fa:puzzle-piece .fw%アプリ</p>
-		<p class={ active: page == 'twitter' } onmousedown={ setPage.bind(null, 'twitter') }>%fa:B twitter .fw%Twitter</p>
-		<p class={ active: page == 'security' } onmousedown={ setPage.bind(null, 'security') }>%fa:unlock-alt .fw%%i18n:desktop.tags.mk-settings.security%</p>
-		<p class={ active: page == 'api' } onmousedown={ setPage.bind(null, 'api') }>%fa:key .fw%API</p>
-		<p class={ active: page == 'other' } onmousedown={ setPage.bind(null, 'other') }>%fa:cogs .fw%%i18n:desktop.tags.mk-settings.other%</p>
+		<p :class="{ active: page == 'profile' }" onmousedown={ setPage.bind(null, 'profile') }>%fa:user .fw%%i18n:desktop.tags.mk-settings.profile%</p>
+		<p :class="{ active: page == 'web' }" onmousedown={ setPage.bind(null, 'web') }>%fa:desktop .fw%Web</p>
+		<p :class="{ active: page == 'notification' }" onmousedown={ setPage.bind(null, 'notification') }>%fa:R bell .fw%通知</p>
+		<p :class="{ active: page == 'drive' }" onmousedown={ setPage.bind(null, 'drive') }>%fa:cloud .fw%%i18n:desktop.tags.mk-settings.drive%</p>
+		<p :class="{ active: page == 'mute' }" onmousedown={ setPage.bind(null, 'mute') }>%fa:ban .fw%%i18n:desktop.tags.mk-settings.mute%</p>
+		<p :class="{ active: page == 'apps' }" onmousedown={ setPage.bind(null, 'apps') }>%fa:puzzle-piece .fw%アプリ</p>
+		<p :class="{ active: page == 'twitter' }" onmousedown={ setPage.bind(null, 'twitter') }>%fa:B twitter .fw%Twitter</p>
+		<p :class="{ active: page == 'security' }" onmousedown={ setPage.bind(null, 'security') }>%fa:unlock-alt .fw%%i18n:desktop.tags.mk-settings.security%</p>
+		<p :class="{ active: page == 'api' }" onmousedown={ setPage.bind(null, 'api') }>%fa:key .fw%API</p>
+		<p :class="{ active: page == 'other' }" onmousedown={ setPage.bind(null, 'other') }>%fa:cogs .fw%%i18n:desktop.tags.mk-settings.other%</p>
 	</div>
 	<div class="pages">
 		<section class="profile" show={ page == 'profile' }>
diff --git a/src/web/app/desktop/tags/timeline.tag b/src/web/app/desktop/tags/timeline.tag
index 4853533469..772140dcc6 100644
--- a/src/web/app/desktop/tags/timeline.tag
+++ b/src/web/app/desktop/tags/timeline.tag
@@ -135,7 +135,7 @@
 				<button @click="repost" title="%i18n:desktop.tags.mk-timeline-post.repost%">
 					%fa:retweet%<p class="count" v-if="p.repost_count > 0">{ p.repost_count }</p>
 				</button>
-				<button class={ reacted: p.my_reaction != null } @click="react" ref="reactButton" title="%i18n:desktop.tags.mk-timeline-post.add-reaction%">
+				<button :class="{ reacted: p.my_reaction != null }" @click="react" ref="reactButton" title="%i18n:desktop.tags.mk-timeline-post.add-reaction%">
 					%fa:plus%<p class="count" v-if="p.reactions_count > 0">{ p.reactions_count }</p>
 				</button>
 				<button @click="menu" ref="menuButton">
diff --git a/src/web/app/mobile/tags/follow-button.tag b/src/web/app/mobile/tags/follow-button.tag
index bd4ecbaf9f..5f746c46b4 100644
--- a/src/web/app/mobile/tags/follow-button.tag
+++ b/src/web/app/mobile/tags/follow-button.tag
@@ -1,5 +1,5 @@
 <mk-follow-button>
-	<button class={ wait: wait, follow: !user.is_following, unfollow: user.is_following } v-if="!init" @click="onclick" disabled={ wait }>
+	<button :class="{ wait: wait, follow: !user.is_following, unfollow: user.is_following }" v-if="!init" @click="onclick" disabled={ wait }>
 		<virtual v-if="!wait && user.is_following">%fa:minus%</virtual>
 		<virtual v-if="!wait && !user.is_following">%fa:plus%</virtual>
 		<virtual v-if="wait">%fa:spinner .pulse .fw%</virtual>{ user.is_following ? '%i18n:mobile.tags.mk-follow-button.unfollow%' : '%i18n:mobile.tags.mk-follow-button.follow%' }
diff --git a/src/web/app/mobile/tags/notification-preview.tag b/src/web/app/mobile/tags/notification-preview.tag
index 06f4fb511a..bd4f633f8c 100644
--- a/src/web/app/mobile/tags/notification-preview.tag
+++ b/src/web/app/mobile/tags/notification-preview.tag
@@ -1,4 +1,4 @@
-<mk-notification-preview class={ notification.type }>
+<mk-notification-preview :class="{ notification.type }">
 	<virtual v-if="notification.type == 'reaction'">
 		<img class="avatar" src={ notification.user.avatar_url + '?thumbnail&size=64' } alt="avatar"/>
 		<div class="text">
diff --git a/src/web/app/mobile/tags/notification.tag b/src/web/app/mobile/tags/notification.tag
index 9aca50cb48..d4f6ca92ee 100644
--- a/src/web/app/mobile/tags/notification.tag
+++ b/src/web/app/mobile/tags/notification.tag
@@ -1,4 +1,4 @@
-<mk-notification class={ notification.type }>
+<mk-notification :class="{ notification.type }">
 	<mk-time time={ notification.created_at }/>
 	<virtual v-if="notification.type == 'reaction'">
 		<a class="avatar-anchor" href={ '/' + notification.user.username }>
diff --git a/src/web/app/mobile/tags/post-detail.tag b/src/web/app/mobile/tags/post-detail.tag
index 6b70b23137..124a707d23 100644
--- a/src/web/app/mobile/tags/post-detail.tag
+++ b/src/web/app/mobile/tags/post-detail.tag
@@ -49,7 +49,7 @@
 			<button @click="repost" title="Repost">
 				%fa:retweet%<p class="count" v-if="p.repost_count > 0">{ p.repost_count }</p>
 			</button>
-			<button class={ reacted: p.my_reaction != null } @click="react" ref="reactButton" title="%i18n:mobile.tags.mk-post-detail.reaction%">
+			<button :class="{ reacted: p.my_reaction != null }" @click="react" ref="reactButton" title="%i18n:mobile.tags.mk-post-detail.reaction%">
 				%fa:plus%<p class="count" v-if="p.reactions_count > 0">{ p.reactions_count }</p>
 			</button>
 			<button @click="menu" ref="menuButton">
diff --git a/src/web/app/mobile/tags/timeline.tag b/src/web/app/mobile/tags/timeline.tag
index 47862a1267..b1ff035471 100644
--- a/src/web/app/mobile/tags/timeline.tag
+++ b/src/web/app/mobile/tags/timeline.tag
@@ -136,7 +136,7 @@
 	</script>
 </mk-timeline>
 
-<mk-timeline-post class={ repost: isRepost }>
+<mk-timeline-post :class="{ repost: isRepost }">
 	<div class="reply-to" v-if="p.reply">
 		<mk-timeline-post-sub post={ p.reply }/>
 	</div>
@@ -188,7 +188,7 @@
 				<button @click="repost" title="Repost">
 					%fa:retweet%<p class="count" v-if="p.repost_count > 0">{ p.repost_count }</p>
 				</button>
-				<button class={ reacted: p.my_reaction != null } @click="react" ref="reactButton">
+				<button :class="{ reacted: p.my_reaction != null }" @click="react" ref="reactButton">
 					%fa:plus%<p class="count" v-if="p.reactions_count > 0">{ p.reactions_count }</p>
 				</button>
 				<button class="menu" @click="menu" ref="menuButton">