diff --git a/packages/frontend/src/components/MkMediaImage.vue b/packages/frontend/src/components/MkMediaImage.vue
index 217ba63f39..cc1c28a9e1 100644
--- a/packages/frontend/src/components/MkMediaImage.vue
+++ b/packages/frontend/src/components/MkMediaImage.vue
@@ -4,7 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<div :class="[hide ? $style.hidden : $style.visible, (image.isSensitive && defaultStore.state.highlightSensitiveMedia) ? $style.sensitive : $style.nonSensitive]" :style="darkMode ? '--c: rgb(255 255 255 / 2%);' : '--c: rgb(0 0 0 / 2%);'" @click="onclick">
+<div :class="[hide ? $style.hidden : $style.visible, (image.isSensitive && defaultStore.state.highlightSensitiveMedia) && $style.sensitive]" :style="darkMode ? '--c: rgb(255 255 255 / 2%);' : '--c: rgb(0 0 0 / 2%);'" @click="onclick">
 	<component
 		:is="disableImageLink ? 'div' : 'a'"
 		v-bind="disableImageLink ? {
@@ -125,11 +125,19 @@ function showMenu(ev: MouseEvent) {
 }
 
 .sensitive {
-	border: 4px solid var(--warn);
-}
-
-.nonSensitive {
-	border: 4px solid transparent;
+	position: relative;
+	
+	&::after {
+		content: "";
+		position: absolute;
+		top: 0;
+		left: 0;
+		width: 100%;
+		height: 100%;
+		pointer-events: none;
+		border-radius: inherit;
+		box-shadow: inset 0 0 0 4px var(--warn);
+	}
 }
 
 .hiddenText {
diff --git a/packages/frontend/src/components/MkMediaVideo.vue b/packages/frontend/src/components/MkMediaVideo.vue
index 2110ef9080..751b5f7570 100644
--- a/packages/frontend/src/components/MkMediaVideo.vue
+++ b/packages/frontend/src/components/MkMediaVideo.vue
@@ -4,7 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<div v-if="hide" :class="[$style.hidden, (video.isSensitive && defaultStore.state.highlightSensitiveMedia) ? $style.sensitiveContainer : $style.nonSensitiveContainer]" @click="hide = false">
+<div v-if="hide" :class="[$style.hidden, (video.isSensitive && defaultStore.state.highlightSensitiveMedia) && $style.sensitiveContainer]" @click="hide = false">
 	<!-- 【注意】dataSaverMode が有効になっている際には、hide が false になるまでサムネイルや動画を読み込まないようにすること -->
 	<div :class="$style.sensitive">
 		<b v-if="video.isSensitive" style="display: block;"><i class="ti ti-alert-triangle"></i> {{ i18n.ts.sensitive }}{{ defaultStore.state.enableDataSaverMode ? ` (${i18n.ts.video}${video.size ? ' ' + bytes(video.size) : ''})` : '' }}</b>
@@ -12,7 +12,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<span>{{ i18n.ts.clickToShow }}</span>
 	</div>
 </div>
-<div v-else :class="[$style.visible, (video.isSensitive && defaultStore.state.highlightSensitiveMedia) ? $style.sensitiveContainer : $style.nonSensitiveContainer]">
+<div v-else :class="[$style.visible, (video.isSensitive && defaultStore.state.highlightSensitiveMedia) && $style.sensitiveContainer]">
 	<video
 		:class="$style.video"
 		:poster="video.thumbnailUrl"
@@ -50,11 +50,19 @@ const hide = ref((defaultStore.state.nsfw === 'force' || defaultStore.state.enab
 }
 
 .sensitiveContainer {
-	border: 4px solid var(--warn);
-}
+	position: relative;
 
-.nonSensitiveContainer {
-	border: 4px solid transparent;
+	&::after {
+		content: "";
+		position: absolute;
+		top: 0;
+		left: 0;
+		width: 100%;
+		height: 100%;
+		pointer-events: none;
+		border-radius: inherit;
+		box-shadow: inset 0 0 0 4px var(--warn);
+	}
 }
 
 .hide {