diff --git a/packages/frontend/src/components/grid/MkDataCell.vue b/packages/frontend/src/components/grid/MkDataCell.vue
index 3cde0c560a..9c12dbddb4 100644
--- a/packages/frontend/src/components/grid/MkDataCell.vue
+++ b/packages/frontend/src/components/grid/MkDataCell.vue
@@ -4,11 +4,15 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<td
+<div
 	ref="rootEl"
+	class="mk_grid_td"
 	:class="$style.cell"
 	:style="{ maxWidth: cellWidth, minWidth: cellWidth }"
 	:tabindex="-1"
+	data-grid-cell
+	:data-grid-cell-row="cell.row.index"
+	:data-grid-cell-col="cell.column.index"
 	@keydown="onCellKeyDown"
 	@dblclick.prevent="onCellDoubleClick"
 >
@@ -77,7 +81,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			/>
 		</div>
 	</div>
-</td>
+</div>
 </template>
 
 <script setup lang="ts">
@@ -143,7 +147,7 @@ function onCellDoubleClick(ev: MouseEvent) {
 
 function onOutsideMouseDown(ev: MouseEvent) {
 	const isOutside = ev.target instanceof Node && !rootEl.value?.contains(ev.target);
-	if (isOutside || !equalCellAddress(cell.value.address, getCellAddress(ev.target as HTMLElement, rowSetting.value))) {
+	if (isOutside || !equalCellAddress(cell.value.address, getCellAddress(ev.target as HTMLElement))) {
 		endEditing(true);
 	}
 }
@@ -352,9 +356,9 @@ $cellHeight: 28px;
 	width: 100%;
 	max-width: 100%;
 	box-sizing: border-box;
-	min-height: $cellHeight;
-	max-height: $cellHeight;
-	height: $cellHeight + 4px;
+	min-height: $cellHeight - 2;
+	max-height: $cellHeight - 2;
+	height: $cellHeight - 2;
 	outline: none;
 	border: none;
 	font-family: 'Hiragino Maru Gothic Pro', "BIZ UDGothic", Roboto, HelveticaNeue, Arial, sans-serif;
diff --git a/packages/frontend/src/components/grid/MkDataRow.vue b/packages/frontend/src/components/grid/MkDataRow.vue
index bbb54b9cef..d3eb214571 100644
--- a/packages/frontend/src/components/grid/MkDataRow.vue
+++ b/packages/frontend/src/components/grid/MkDataRow.vue
@@ -4,7 +4,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<tr
+<div
+	class="mk_grid_tr"
 	:class="[
 		$style.row,
 		row.ranged ? $style.ranged : {},
@@ -13,6 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	:style="[
 		...(row.additionalStyles ?? []).map(it => it.style ?? {}),
 	]"
+	:data-grid-row="row.index"
 >
 	<MkNumberCell
 		v-if="setting.showNumber"
@@ -31,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		@change:value="(sender, newValue) => emit('change:value', sender, newValue)"
 		@change:contentSize="(sender, newSize) => emit('change:contentSize', sender, newSize)"
 	/>
-</tr>
+</div>
 </template>
 
 <script setup lang="ts">
@@ -58,6 +60,10 @@ defineProps<{
 
 <style module lang="scss">
 .row {
+	display: flex;
+	flex-direction: row;
+	align-items: center;
+
 	&.ranged {
 		background-color: var(--accentedBg);
 	}
diff --git a/packages/frontend/src/components/grid/MkGrid.vue b/packages/frontend/src/components/grid/MkGrid.vue
index 3d8b313109..9d8c16b1d1 100644
--- a/packages/frontend/src/components/grid/MkGrid.vue
+++ b/packages/frontend/src/components/grid/MkGrid.vue
@@ -4,14 +4,15 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<table
+<div
 	ref="rootEl"
-	:class="[$style.grid, $style.border]"
+	class="mk_grid_border"
+	:class="[$style.grid]"
 	@mousedown.prevent="onMouseDown"
 	@keydown="onKeyDown"
 	@contextmenu.prevent.stop="onContextMenu"
 >
-	<thead>
+	<div class="mk_grid_thead">
 		<MkHeaderRow
 			:columns="columns"
 			:gridSetting="rowSetting"
@@ -22,8 +23,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 			@change:width="onHeaderCellChangeWidth"
 			@change:contentSize="onHeaderCellChangeContentSize"
 		/>
-	</thead>
-	<tbody>
+	</div>
+	<div class="mk_grid_tbody">
 		<MkDataRow
 			v-for="row in rows"
 			v-show="row.using"
@@ -39,8 +40,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 			@change:value="onChangeCellValue"
 			@change:contentSize="onChangeCellContentSize"
 		/>
-	</tbody>
-</table>
+	</div>
+</div>
 </template>
 
 <script setup lang="ts">
@@ -81,14 +82,14 @@ const props = defineProps<{
 }>();
 
 // non-reactive
-// eslint-disable-next-line vue/no-setup-props-destructure
+
 const rowSetting: Required<GridRowSetting> = {
 	...defaultGridRowSetting,
 	...props.settings.row,
 };
 
 // non-reactive
-// eslint-disable-next-line vue/no-setup-props-destructure
+
 const columnSettings = props.settings.cols;
 
 // non-reactive
@@ -448,7 +449,7 @@ function onMouseDown(ev: MouseEvent) {
 }
 
 function onLeftMouseDown(ev: MouseEvent) {
-	const cellAddress = getCellAddress(ev.target as HTMLElement, rowSetting);
+	const cellAddress = getCellAddress(ev.target as HTMLElement);
 	if (_DEV_) {
 		console.log(`[grid][mouse-left] state:${state.value}, button: ${ev.button}, cell: ${cellAddress.row}x${cellAddress.col}`);
 	}
@@ -582,7 +583,7 @@ function onLeftMouseDown(ev: MouseEvent) {
 }
 
 function onRightMouseDown(ev: MouseEvent) {
-	const cellAddress = getCellAddress(ev.target as HTMLElement, rowSetting);
+	const cellAddress = getCellAddress(ev.target as HTMLElement);
 	if (_DEV_) {
 		console.log(`[grid][mouse-right] button: ${ev.button}, cell: ${cellAddress.row}x${cellAddress.col}`);
 	}
@@ -607,7 +608,7 @@ function onRightMouseDown(ev: MouseEvent) {
 function onMouseMove(ev: MouseEvent) {
 	ev.preventDefault();
 
-	const targetCellAddress = getCellAddress(ev.target as HTMLElement, rowSetting);
+	const targetCellAddress = getCellAddress(ev.target as HTMLElement);
 	if (equalCellAddress(previousCellAddress.value, targetCellAddress)) {
 		// セルが変わるまでイベントを起こしたくない
 		return;
@@ -718,7 +719,7 @@ function onMouseUp(ev: MouseEvent) {
 }
 
 function onContextMenu(ev: MouseEvent) {
-	const cellAddress = getCellAddress(ev.target as HTMLElement, rowSetting);
+	const cellAddress = getCellAddress(ev.target as HTMLElement);
 	if (_DEV_) {
 		console.log(`[grid][context-menu] button: ${ev.button}, cell: ${cellAddress.row}x${cellAddress.col}`);
 	}
@@ -1270,22 +1271,22 @@ onMounted(() => {
 </script>
 
 <style module lang="scss">
+.grid {
+	font-size: 90%;
+}
+</style>
+
+<style lang="scss">
 $borderSetting: solid 0.5px var(--divider);
 $borderRadius: var(--radius);
 
-.grid {
-	overflow: scroll;
-	table-layout: fixed;
-	user-select: none;
-	font-size: 90%;
-}
-
-.border {
+// 配下コンポーネントを含めて一括してコントロールするため、scopedもmoduleも使用できない
+.mk_grid_border {
 	border-spacing: 0;
 
-	thead {
-		tr {
-			th {
+	.mk_grid_thead {
+		.mk_grid_tr {
+			.mk_grid_th {
 				border-left: $borderSetting;
 				border-top: $borderSetting;
 
@@ -1303,9 +1304,9 @@ $borderRadius: var(--radius);
 		}
 	}
 
-	tbody {
-		tr {
-			td, th {
+	.mk_grid_tbody {
+		.mk_grid_tr {
+			.mk_grid_td, .mk_grid_th {
 				border-left: $borderSetting;
 				border-top: $borderSetting;
 
@@ -1316,7 +1317,7 @@ $borderRadius: var(--radius);
 			}
 
 			&.lastLine {
-				td, th {
+				.mk_grid_td, .mk_grid_th {
 					// 一番下の行
 					border-bottom: $borderSetting;
 
diff --git a/packages/frontend/src/components/grid/MkHeaderCell.vue b/packages/frontend/src/components/grid/MkHeaderCell.vue
index 227e532fc6..605d27c6d6 100644
--- a/packages/frontend/src/components/grid/MkHeaderCell.vue
+++ b/packages/frontend/src/components/grid/MkHeaderCell.vue
@@ -4,16 +4,20 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<th
+<div
 	ref="rootEl"
+	class="mk_grid_th"
 	:class="$style.cell"
 	:style="[{ maxWidth: column.width, minWidth: column.width, width: column.width }]"
+	data-grid-cell
+	:data-grid-cell-row="-1"
+	:data-grid-cell-col="column.index"
 >
 	<div :class="$style.root">
 		<div :class="$style.left"/>
 		<div :class="$style.wrapper">
 			<div ref="contentEl" :class="$style.contentArea">
-				<span v-if="column.setting.icon" class="ti" :class="column.setting.icon"/>
+				<span v-if="column.setting.icon" class="ti" :class="column.setting.icon" style="line-height: normal"/>
 				<span v-else>{{ text }}</span>
 			</div>
 		</div>
@@ -23,7 +27,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			@dblclick="onHandleDoubleClick"
 		/>
 	</div>
-</th>
+</div>
 </template>
 
 <script setup lang="ts">
@@ -161,6 +165,7 @@ onUnmounted(() => {
 
 <style module lang="scss">
 $handleWidth: 5px;
+$cellHeight: 28px;
 
 .cell {
 	cursor: pointer;
@@ -169,7 +174,9 @@ $handleWidth: 5px;
 .root {
 	display: flex;
 	flex-direction: row;
-	height: 100%;
+	height: $cellHeight;
+	max-height: $cellHeight;
+	min-height: $cellHeight;
 
 	.wrapper {
 		flex: 1;
diff --git a/packages/frontend/src/components/grid/MkHeaderRow.vue b/packages/frontend/src/components/grid/MkHeaderRow.vue
index 77fa0d758e..8affa08fd5 100644
--- a/packages/frontend/src/components/grid/MkHeaderRow.vue
+++ b/packages/frontend/src/components/grid/MkHeaderRow.vue
@@ -4,7 +4,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<tr>
+<div
+	class="mk_grid_tr"
+	:class="$style.root"
+	:data-grid-row="-1"
+>
 	<MkNumberCell
 		v-if="gridSetting.showNumber"
 		content="#"
@@ -21,7 +25,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		@change:width="(sender, width) => emit('change:width', sender, width)"
 		@change:contentSize="(sender, newSize) => emit('change:contentSize', sender, newSize)"
 	/>
-</tr>
+</div>
 </template>
 
 <script setup lang="ts">
@@ -46,3 +50,11 @@ defineProps<{
 	bus: GridEventEmitter,
 }>();
 </script>
+
+<style module lang="scss">
+.root {
+	display: flex;
+	flex-direction: row;
+	align-items: center;
+}
+</style>
diff --git a/packages/frontend/src/components/grid/MkNumberCell.vue b/packages/frontend/src/components/grid/MkNumberCell.vue
index c234391396..ebda3ff01c 100644
--- a/packages/frontend/src/components/grid/MkNumberCell.vue
+++ b/packages/frontend/src/components/grid/MkNumberCell.vue
@@ -4,11 +4,18 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<th :class="[$style.cell]" tabindex="-1">
+<div
+	class="mk_grid_th"
+	:class="[$style.cell]"
+	:tabindex="-1"
+	data-grid-cell
+	:data-grid-cell-row="row?.index ?? -1"
+	:data-grid-cell-col="-1"
+>
 	<div :class="[$style.root]">
 		{{ content }}
 	</div>
-</th>
+</div>
 </template>
 
 <script setup lang="ts">
diff --git a/packages/frontend/src/components/grid/grid-utils.ts b/packages/frontend/src/components/grid/grid-utils.ts
index c59908571f..1281397a24 100644
--- a/packages/frontend/src/components/grid/grid-utils.ts
+++ b/packages/frontend/src/components/grid/grid-utils.ts
@@ -6,17 +6,17 @@
 import { isRef, Ref } from 'vue';
 import { DataSource, SizeStyle } from '@/components/grid/grid.js';
 import { CELL_ADDRESS_NONE, CellAddress, CellValue, GridCell } from '@/components/grid/cell.js';
-import { GridRow, GridRowSetting } from '@/components/grid/row.js';
+import { GridRow } from '@/components/grid/row.js';
 import { GridContext } from '@/components/grid/grid-event.js';
 import copyToClipboard from '@/scripts/copy-to-clipboard.js';
 import { GridColumn, GridColumnSetting } from '@/components/grid/column.js';
 
-export function isCellElement(elem: any): elem is HTMLTableCellElement {
-	return elem instanceof HTMLTableCellElement;
+export function isCellElement(elem: HTMLElement): boolean {
+	return elem.hasAttribute('data-grid-cell');
 }
 
-export function isRowElement(elem: any): elem is HTMLTableRowElement {
-	return elem instanceof HTMLTableRowElement;
+export function isRowElement(elem: HTMLElement): boolean {
+	return elem.hasAttribute('data-grid-row');
 }
 
 export function calcCellWidth(widthSetting: SizeStyle): string {
@@ -31,29 +31,43 @@ export function calcCellWidth(widthSetting: SizeStyle): string {
 	}
 }
 
-export function getCellAddress(elem: HTMLElement, gridSetting: GridRowSetting, parentNodeCount = 10): CellAddress {
+function getCellRowByAttribute(elem: HTMLElement): number {
+	const row = elem.getAttribute('data-grid-cell-row');
+	if (row === null) {
+		throw new Error('data-grid-cell-row attribute not found');
+	}
+	return Number(row);
+}
+
+function getCellColByAttribute(elem: HTMLElement): number {
+	const col = elem.getAttribute('data-grid-cell-col');
+	if (col === null) {
+		throw new Error('data-grid-cell-col attribute not found');
+	}
+	return Number(col);
+}
+
+export function getCellAddress(elem: HTMLElement, parentNodeCount = 10): CellAddress {
 	let node = elem;
 	for (let i = 0; i < parentNodeCount; i++) {
-		if (isCellElement(node) && isRowElement(node.parentElement)) {
-			return {
-				// ヘッダ行ぶんを除く
-				row: node.parentElement.rowIndex - 1,
-				// 数値列ぶんを除く
-				col: gridSetting.showNumber ? node.cellIndex - 1 : node.cellIndex,
-			};
-		}
-
 		if (!node.parentElement) {
 			break;
 		}
 
+		if (isCellElement(node) && isRowElement(node.parentElement)) {
+			const row = getCellRowByAttribute(node);
+			const col = getCellColByAttribute(node);
+
+			return { row, col };
+		}
+
 		node = node.parentElement;
 	}
 
 	return CELL_ADDRESS_NONE;
 }
 
-export function getCellElement(elem: HTMLElement, parentNodeCount = 10): HTMLTableCellElement | null {
+export function getCellElement(elem: HTMLElement, parentNodeCount = 10): HTMLElement | null {
 	let node = elem;
 	for (let i = 0; i < parentNodeCount; i++) {
 		if (isCellElement(node)) {