diff --git a/packages/client/src/components/form/input.vue b/packages/client/src/components/form/input.vue
index 5065e28892..ec1ad20de3 100644
--- a/packages/client/src/components/form/input.vue
+++ b/packages/client/src/components/form/input.vue
@@ -33,176 +33,118 @@
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent, onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs } from 'vue';
+<script lang="ts" setup>
+import { onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs } from 'vue';
 import { debounce } from 'throttle-debounce';
 import MkButton from '@/components/ui/button.vue';
 import { useInterval } from '@/scripts/use-interval';
 
-export default defineComponent({
-	components: {
-		MkButton,
-	},
+const props = defineProps<{
+	modelValue: string | number;
+	type?: 'text' | 'number' | 'password' | 'email' | 'url' | 'date' | 'time';
+	required?: boolean;
+	readonly?: boolean;
+	disabled?: boolean;
+	pattern?: string;
+	placeholder?: string;
+	autofocus?: boolean;
+	autocomplete?: boolean;
+	spellcheck?: boolean;
+	step?: any;
+	datalist?: string[];
+	inline?: boolean;
+	debounce?: boolean;
+	manualSave?: boolean;
+	small?: boolean;
+	large?: boolean;
+}>();
 
-	props: {
-		modelValue: {
-			required: true,
-		},
-		type: {
-			type: String,
-			required: false,
-		},
-		required: {
-			type: Boolean,
-			required: false,
-		},
-		readonly: {
-			type: Boolean,
-			required: false,
-		},
-		disabled: {
-			type: Boolean,
-			required: false,
-		},
-		pattern: {
-			type: String,
-			required: false,
-		},
-		placeholder: {
-			type: String,
-			required: false,
-		},
-		autofocus: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-		autocomplete: {
-			required: false,
-		},
-		spellcheck: {
-			required: false,
-		},
-		step: {
-			required: false,
-		},
-		datalist: {
-			type: Array,
-			required: false,
-		},
-		inline: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-		debounce: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-		manualSave: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-	},
+const emit = defineEmits<{
+	(ev: 'change', _ev: KeyboardEvent): void;
+	(ev: 'keydown', _ev: KeyboardEvent): void;
+	(ev: 'enter'): void;
+	(ev: 'update:modelValue', value: string | number): void;
+}>();
 
-	emits: ['change', 'keydown', 'enter', 'update:modelValue'],
+const { modelValue, type, autofocus } = toRefs(props);
+const v = ref(modelValue.value);
+const id = Math.random().toString(); // TODO: uuid?
+const focused = ref(false);
+const changed = ref(false);
+const invalid = ref(false);
+const filled = computed(() => v.value !== '' && v.value != null);
+const inputEl = ref<HTMLElement>();
+const prefixEl = ref<HTMLElement>();
+const suffixEl = ref<HTMLElement>();
+const height =
+	props.small ? 38 :
+	props.large ? 42 :
+	40;
 
-	setup(props, context) {
-		const { modelValue, type, autofocus } = toRefs(props);
-		const v = ref(modelValue.value);
-		const id = Math.random().toString(); // TODO: uuid?
-		const focused = ref(false);
-		const changed = ref(false);
-		const invalid = ref(false);
-		const filled = computed(() => v.value !== '' && v.value != null);
-		const inputEl = ref<HTMLElement>();
-		const prefixEl = ref<HTMLElement>();
-		const suffixEl = ref<HTMLElement>();
+const focus = () => inputEl.value.focus();
+const onInput = (ev: KeyboardEvent) => {
+	changed.value = true;
+	emit('change', ev);
+};
+const onKeydown = (ev: KeyboardEvent) => {
+	emit('keydown', ev);
 
-		const focus = () => inputEl.value.focus();
-		const onInput = (ev) => {
-			changed.value = true;
-			context.emit('change', ev);
-		};
-		const onKeydown = (ev: KeyboardEvent) => {
-			context.emit('keydown', ev);
+	if (ev.code === 'Enter') {
+		emit('enter');
+	}
+};
 
-			if (ev.code === 'Enter') {
-				context.emit('enter');
-			}
-		};
+const updated = () => {
+	changed.value = false;
+	if (type.value === 'number') {
+		emit('update:modelValue', parseFloat(v.value));
+	} else {
+		emit('update:modelValue', v.value);
+	}
+};
 
-		const updated = () => {
-			changed.value = false;
-			if (type.value === 'number') {
-				context.emit('update:modelValue', parseFloat(v.value));
-			} else {
-				context.emit('update:modelValue', v.value);
-			}
-		};
+const debouncedUpdated = debounce(1000, updated);
 
-		const debouncedUpdated = debounce(1000, updated);
+watch(modelValue, newValue => {
+	v.value = newValue;
+});
 
-		watch(modelValue, newValue => {
-			v.value = newValue;
-		});
+watch(v, newValue => {
+	if (!props.manualSave) {
+		if (props.debounce) {
+			debouncedUpdated();
+		} else {
+			updated();
+		}
+	}
 
-		watch(v, newValue => {
-			if (!props.manualSave) {
-				if (props.debounce) {
-					debouncedUpdated();
-				} else {
-					updated();
-				}
-			}
+	invalid.value = inputEl.value.validity.badInput;
+});
 
-			invalid.value = inputEl.value.validity.badInput;
-		});
+// このコンポーネントが作成された時、非表示状態である場合がある
+// 非表示状態だと要素の幅などは0になってしまうので、定期的に計算する
+useInterval(() => {
+	if (prefixEl.value) {
+		if (prefixEl.value.offsetWidth) {
+			inputEl.value.style.paddingLeft = prefixEl.value.offsetWidth + 'px';
+		}
+	}
+	if (suffixEl.value) {
+		if (suffixEl.value.offsetWidth) {
+			inputEl.value.style.paddingRight = suffixEl.value.offsetWidth + 'px';
+		}
+	}
+}, 100, {
+	immediate: true,
+	afterMounted: true,
+});
 
-		// このコンポーネントが作成された時、非表示状態である場合がある
-		// 非表示状態だと要素の幅などは0になってしまうので、定期的に計算する
-		useInterval(() => {
-			if (prefixEl.value) {
-				if (prefixEl.value.offsetWidth) {
-					inputEl.value.style.paddingLeft = prefixEl.value.offsetWidth + 'px';
-				}
-			}
-			if (suffixEl.value) {
-				if (suffixEl.value.offsetWidth) {
-					inputEl.value.style.paddingRight = suffixEl.value.offsetWidth + 'px';
-				}
-			}
-		}, 100, {
-			immediate: true,
-			afterMounted: true,
-		});
-
-		onMounted(() => {
-			nextTick(() => {
-				if (autofocus.value) {
-					focus();
-				}
-			});
-		});
-
-		return {
-			id,
-			v,
-			focused,
-			invalid,
-			changed,
-			filled,
-			inputEl,
-			prefixEl,
-			suffixEl,
-			focus,
-			onInput,
-			onKeydown,
-			updated,
-		};
-	},
+onMounted(() => {
+	nextTick(() => {
+		if (autofocus.value) {
+			focus();
+		}
+	});
 });
 </script>
 
@@ -229,14 +171,13 @@ export default defineComponent({
 	}
 
 	> .input {
-		$height: 42px;
 		position: relative;
 
 		> input {
 			appearance: none;
 			-webkit-appearance: none;
 			display: block;
-			height: $height;
+			height: v-bind("height + 'px'");
 			width: 100%;
 			margin: 0;
 			padding: 0 12px;
@@ -266,7 +207,7 @@ export default defineComponent({
 			top: 0;
 			padding: 0 12px;
 			font-size: 1em;
-			height: $height;
+			height: v-bind("height + 'px'");
 			pointer-events: none;
 
 			&:empty {
diff --git a/packages/client/src/components/form/select.vue b/packages/client/src/components/form/select.vue
index 7f5f8784b6..05e95a0917 100644
--- a/packages/client/src/components/form/select.vue
+++ b/packages/client/src/components/form/select.vue
@@ -26,178 +26,139 @@
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent, onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs, VNode } from 'vue';
+<script lang="ts" setup>
+import { onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs, VNode, useSlots } from 'vue';
 import MkButton from '@/components/ui/button.vue';
 import * as os from '@/os';
 import { useInterval } from '@/scripts/use-interval';
 
-export default defineComponent({
-	components: {
-		MkButton,
-	},
+const props = defineProps<{
+	modelValue: string;
+	required?: boolean;
+	readonly?: boolean;
+	disabled?: boolean;
+	placeholder?: string;
+	autofocus?: boolean;
+	inline?: boolean;
+	manualSave?: boolean;
+	small?: boolean;
+	large?: boolean;
+}>();
 
-	props: {
-		modelValue: {
-			required: true,
-		},
-		required: {
-			type: Boolean,
-			required: false,
-		},
-		readonly: {
-			type: Boolean,
-			required: false,
-		},
-		disabled: {
-			type: Boolean,
-			required: false,
-		},
-		placeholder: {
-			type: String,
-			required: false,
-		},
-		autofocus: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-		inline: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-		manualSave: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-	},
+const emit = defineEmits<{
+	(ev: 'change', _ev: KeyboardEvent): void;
+	(ev: 'update:modelValue', value: string): void;
+}>();
 
-	emits: ['change', 'update:modelValue'],
+const slots = useSlots();
 
-	setup(props, context) {
-		const { modelValue, autofocus } = toRefs(props);
-		const v = ref(modelValue.value);
-		const focused = ref(false);
-		const changed = ref(false);
-		const invalid = ref(false);
-		const filled = computed(() => v.value !== '' && v.value != null);
-		const inputEl = ref(null);
-		const prefixEl = ref(null);
-		const suffixEl = ref(null);
-		const container = ref(null);
+const { modelValue, autofocus } = toRefs(props);
+const v = ref(modelValue.value);
+const focused = ref(false);
+const changed = ref(false);
+const invalid = ref(false);
+const filled = computed(() => v.value !== '' && v.value != null);
+const inputEl = ref(null);
+const prefixEl = ref(null);
+const suffixEl = ref(null);
+const container = ref(null);
+const height =
+	props.small ? 38 :
+	props.large ? 42 :
+	40;
 
-		const focus = () => inputEl.value.focus();
-		const onInput = (ev) => {
-			changed.value = true;
-			context.emit('change', ev);
-		};
+const focus = () => inputEl.value.focus();
+const onInput = (ev) => {
+	changed.value = true;
+	emit('change', ev);
+};
 
-		const updated = () => {
-			changed.value = false;
-			context.emit('update:modelValue', v.value);
-		};
+const updated = () => {
+	changed.value = false;
+	emit('update:modelValue', v.value);
+};
 
-		watch(modelValue, newValue => {
-			v.value = newValue;
-		});
-
-		watch(v, newValue => {
-			if (!props.manualSave) {
-				updated();
-			}
-
-			invalid.value = inputEl.value.validity.badInput;
-		});
-
-		// このコンポーネントが作成された時、非表示状態である場合がある
-		// 非表示状態だと要素の幅などは0になってしまうので、定期的に計算する
-		useInterval(() => {
-			if (prefixEl.value) {
-				if (prefixEl.value.offsetWidth) {
-					inputEl.value.style.paddingLeft = prefixEl.value.offsetWidth + 'px';
-				}
-			}
-			if (suffixEl.value) {
-				if (suffixEl.value.offsetWidth) {
-					inputEl.value.style.paddingRight = suffixEl.value.offsetWidth + 'px';
-				}
-			}
-		}, 100, {
-			immediate: true,
-			afterMounted: true,
-		});
-
-		onMounted(() => {
-			nextTick(() => {
-				if (autofocus.value) {
-					focus();
-				}
-			});
-		});
-
-		const onClick = (ev: MouseEvent) => {
-			focused.value = true;
-
-			const menu = [];
-			let options = context.slots.default();
-
-			const pushOption = (option: VNode) => {
-				menu.push({
-					text: option.children,
-					active: v.value === option.props.value,
-					action: () => {
-						v.value = option.props.value;
-					},
-				});
-			};
-
-			const scanOptions = (options: VNode[]) => {
-				for (const vnode of options) {
-					if (vnode.type === 'optgroup') {
-						const optgroup = vnode;
-						menu.push({
-							type: 'label',
-							text: optgroup.props.label,
-						});
-						scanOptions(optgroup.children);
-					} else if (Array.isArray(vnode.children)) { // 何故かフラグメントになってくることがある
-						const fragment = vnode;
-						scanOptions(fragment.children);
-					} else {
-						const option = vnode;
-						pushOption(option);
-					}
-				}
-			};
-
-			scanOptions(options);
-
-			os.popupMenu(menu, container.value, {
-				width: container.value.offsetWidth,
-			}).then(() => {
-				focused.value = false;
-			});
-		};
-
-		return {
-			v,
-			focused,
-			invalid,
-			changed,
-			filled,
-			inputEl,
-			prefixEl,
-			suffixEl,
-			container,
-			focus,
-			onInput,
-			onClick,
-			updated,
-		};
-	},
+watch(modelValue, newValue => {
+	v.value = newValue;
 });
+
+watch(v, newValue => {
+	if (!props.manualSave) {
+		updated();
+	}
+
+	invalid.value = inputEl.value.validity.badInput;
+});
+
+// このコンポーネントが作成された時、非表示状態である場合がある
+// 非表示状態だと要素の幅などは0になってしまうので、定期的に計算する
+useInterval(() => {
+	if (prefixEl.value) {
+		if (prefixEl.value.offsetWidth) {
+			inputEl.value.style.paddingLeft = prefixEl.value.offsetWidth + 'px';
+		}
+	}
+	if (suffixEl.value) {
+		if (suffixEl.value.offsetWidth) {
+			inputEl.value.style.paddingRight = suffixEl.value.offsetWidth + 'px';
+		}
+	}
+}, 100, {
+	immediate: true,
+	afterMounted: true,
+});
+
+onMounted(() => {
+	nextTick(() => {
+		if (autofocus.value) {
+			focus();
+		}
+	});
+});
+
+const onClick = (ev: MouseEvent) => {
+	focused.value = true;
+
+	const menu = [];
+	let options = slots.default!();
+
+	const pushOption = (option: VNode) => {
+		menu.push({
+			text: option.children,
+			active: v.value === option.props.value,
+			action: () => {
+				v.value = option.props.value;
+			},
+		});
+	};
+
+	const scanOptions = (options: VNode[]) => {
+		for (const vnode of options) {
+			if (vnode.type === 'optgroup') {
+				const optgroup = vnode;
+				menu.push({
+					type: 'label',
+					text: optgroup.props.label,
+				});
+				scanOptions(optgroup.children);
+			} else if (Array.isArray(vnode.children)) { // 何故かフラグメントになってくることがある
+				const fragment = vnode;
+				scanOptions(fragment.children);
+			} else {
+				const option = vnode;
+				pushOption(option);
+			}
+		}
+	};
+
+	scanOptions(options);
+
+	os.popupMenu(menu, container.value, {
+		width: container.value.offsetWidth,
+	}).then(() => {
+		focused.value = false;
+	});
+};
 </script>
 
 <style lang="scss" scoped>
@@ -223,7 +184,6 @@ export default defineComponent({
 	}
 
 	> .input {
-		$height: 42px;
 		position: relative;
 		cursor: pointer;
 
@@ -237,7 +197,7 @@ export default defineComponent({
 			appearance: none;
 			-webkit-appearance: none;
 			display: block;
-			height: $height;
+			height: v-bind("height + 'px'");
 			width: 100%;
 			margin: 0;
 			padding: 0 12px;
@@ -265,7 +225,7 @@ export default defineComponent({
 			top: 0;
 			padding: 0 12px;
 			font-size: 1em;
-			height: $height;
+			height: v-bind("height + 'px'");
 			pointer-events: none;
 
 			&:empty {
diff --git a/packages/client/src/components/poll-editor.vue b/packages/client/src/components/poll-editor.vue
index 9aa5510c7f..d2b88f6bfc 100644
--- a/packages/client/src/components/poll-editor.vue
+++ b/packages/client/src/components/poll-editor.vue
@@ -5,7 +5,7 @@
 	</p>
 	<ul>
 		<li v-for="(choice, i) in choices" :key="i">
-			<MkInput class="input" :model-value="choice" :placeholder="$t('_poll.choiceN', { n: i + 1 })" @update:modelValue="onInput(i, $event)">
+			<MkInput class="input" small :model-value="choice" :placeholder="$t('_poll.choiceN', { n: i + 1 })" @update:modelValue="onInput(i, $event)">
 			</MkInput>
 			<button class="_button" @click="remove(i)">
 				<i class="fas fa-times"></i>
@@ -17,25 +17,25 @@
 	<MkSwitch v-model="multiple">{{ $ts._poll.canMultipleVote }}</MkSwitch>
 	<section>
 		<div>
-			<MkSelect v-model="expiration">
+			<MkSelect v-model="expiration" small>
 				<template #label>{{ $ts._poll.expiration }}</template>
 				<option value="infinite">{{ $ts._poll.infinite }}</option>
 				<option value="at">{{ $ts._poll.at }}</option>
 				<option value="after">{{ $ts._poll.after }}</option>
 			</MkSelect>
 			<section v-if="expiration === 'at'">
-				<MkInput v-model="atDate" type="date" class="input">
+				<MkInput v-model="atDate" small type="date" class="input">
 					<template #label>{{ $ts._poll.deadlineDate }}</template>
 				</MkInput>
-				<MkInput v-model="atTime" type="time" class="input">
+				<MkInput v-model="atTime" small type="time" class="input">
 					<template #label>{{ $ts._poll.deadlineTime }}</template>
 				</MkInput>
 			</section>
 			<section v-else-if="expiration === 'after'">
-				<MkInput v-model="after" type="number" class="input">
+				<MkInput v-model="after" small type="number" class="input">
 					<template #label>{{ $ts._poll.duration }}</template>
 				</MkInput>
-				<MkSelect v-model="unit">
+				<MkSelect v-model="unit" small>
 					<option value="second">{{ $ts._time.second }}</option>
 					<option value="minute">{{ $ts._time.minute }}</option>
 					<option value="hour">{{ $ts._time.hour }}</option>
@@ -49,12 +49,12 @@
 
 <script lang="ts" setup>
 import { ref, watch } from 'vue';
-import { addTime } from '@/scripts/time';
-import { formatDateTimeString } from '@/scripts/format-time-string';
 import MkInput from './form/input.vue';
 import MkSelect from './form/select.vue';
 import MkSwitch from './form/switch.vue';
 import MkButton from './ui/button.vue';
+import { formatDateTimeString } from '@/scripts/format-time-string';
+import { addTime } from '@/scripts/time';
 
 const props = defineProps<{
 	modelValue: {
@@ -129,7 +129,7 @@ function get() {
 		...(
 			expiration.value === 'at' ? { expiresAt: calcAt() } :
 			expiration.value === 'after' ? { expiredAfter: calcAfter() } : {}
-		)
+		),
 	};
 }
 
diff --git a/packages/client/src/pages/settings/theme.vue b/packages/client/src/pages/settings/theme.vue
index db4262ba7e..ddffe08225 100644
--- a/packages/client/src/pages/settings/theme.vue
+++ b/packages/client/src/pages/settings/theme.vue
@@ -1,5 +1,5 @@
 <template>
-<div class="_formRoot">
+<div class="_formRoot root">
 	<div v-adaptive-border class="rfqxtzch _panel _formBlock">
 		<div class="toggle">
 			<div class="toggleWrapper">
@@ -26,18 +26,8 @@
 		</div>
 	</div>
 
-	<template v-if="darkMode">
-		<FormSelect v-model="darkThemeId" class="_formBlock">
-			<template #label>{{ $ts.themeForDarkMode }}</template>
-			<template #prefix><i class="fas fa-moon"></i></template>
-			<optgroup :label="$ts.darkThemes">
-				<option v-for="x in darkThemes" :key="x.id" :value="x.id">{{ x.name }}</option>
-			</optgroup>
-			<optgroup :label="$ts.lightThemes">
-				<option v-for="x in lightThemes" :key="x.id" :value="x.id">{{ x.name }}</option>
-			</optgroup>
-		</FormSelect>
-		<FormSelect v-model="lightThemeId" class="_formBlock">
+	<div class="selects _formBlock">
+		<FormSelect v-model="lightThemeId" large class="select">
 			<template #label>{{ $ts.themeForLightMode }}</template>
 			<template #prefix><i class="fas fa-sun"></i></template>
 			<optgroup :label="$ts.lightThemes">
@@ -47,19 +37,7 @@
 				<option v-for="x in darkThemes" :key="x.id" :value="x.id">{{ x.name }}</option>
 			</optgroup>
 		</FormSelect>
-	</template>
-	<template v-else>
-		<FormSelect v-model="lightThemeId" class="_formBlock">
-			<template #label>{{ $ts.themeForLightMode }}</template>
-			<template #prefix><i class="fas fa-sun"></i></template>
-			<optgroup :label="$ts.lightThemes">
-				<option v-for="x in lightThemes" :key="x.id" :value="x.id">{{ x.name }}</option>
-			</optgroup>
-			<optgroup :label="$ts.darkThemes">
-				<option v-for="x in darkThemes" :key="x.id" :value="x.id">{{ x.name }}</option>
-			</optgroup>
-		</FormSelect>
-		<FormSelect v-model="darkThemeId" class="_formBlock">
+		<FormSelect v-model="darkThemeId" large class="select">
 			<template #label>{{ $ts.themeForDarkMode }}</template>
 			<template #prefix><i class="fas fa-moon"></i></template>
 			<optgroup :label="$ts.darkThemes">
@@ -69,7 +47,7 @@
 				<option v-for="x in lightThemes" :key="x.id" :value="x.id">{{ x.name }}</option>
 			</optgroup>
 		</FormSelect>
-	</template>
+	</div>
 
 	<FormSection>
 		<div class="_formLinksGrid">
@@ -406,4 +384,17 @@ definePageMetadata({
 		border-top: solid 0.5px var(--divider);
 	}
 }
+
+.root {
+	> .selects {
+		display: flex;
+		gap: var(--margin);
+		flex-wrap: wrap;
+
+		> .select {
+			flex: 1;
+			min-width: 280px;
+		}
+	}
+}
 </style>