简体中文
简体中文
# box-shadow
CSS box-shadow 属性用于在元素的框架上添加阴影效果。你可以在同一个元素上设置多个阴影效果，并用逗号将他们分隔开。该属性可设置的值包括阴影的 X 轴偏移量、Y 轴偏移量、模糊半径、扩散半径和颜色。
# uni-app x 兼容性
| Web | Android | iOS | HarmonyOS | HarmonyOS(Vapor) |
|---|---|---|---|---|
| 4.0 | 3.9 | 4.11 | 4.61 | 5.0 |
# 语法
box-shadow: none | <shadow>#;
# 值限制
- enum
- length
- color
# box-shadow 的属性值
| 名称 | 兼容性 | 描述 |
|---|---|---|
| inset | 如果没有指定inset，默认阴影在边框外，即阴影向外扩散。 使用 inset 关键字会使得阴影落在盒子内部，这样看起来就像是内容被压低了。此时阴影会在边框之内 (即使是透明边框）、背景之上、内容之下。 | |
| none | No shadow. |
# 示例
示例为hello uni-app x alpha分支，与最新HBuilderX Alpha版同步。与最新正式版同步的master分支示例另见
示例
<template>
<!-- #ifdef APP -->
<scroll-view style="flex: 1">
<!-- #endif -->
<view style="flex-grow: 1">
<view style="margin-bottom: 10px;">
<text style="font-weight: bold;">说明：左边是正常版本，右边是拍平版本</text>
</view>
<view>
<text>box-shadow: 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 5px 5px #00FF00</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px #00FF00"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px #00FF00" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 5px 5px rgb(0,0,255)</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 5px 5px rgb(0,0,255)"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 5px 5px rgb(0,0,255)" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 5px 5px rgba(0,255,255,0.5)</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px rgba(0,255,255,0.5)"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px rgba(0,255,255,0.5)" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.5)</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.5)"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.5)" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 10px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 10px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: 5px 10px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: 5px 5px 5px 5px black（harmony暂不支持阴影扩散半径）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 5px 5px 5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: -5px -5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: -5px -5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="box-shadow: -5px -5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>box-shadow: inset 5px 5px black（harmony暂不支持inset）</text>
<view class="backgroundview">
<view class="common" style="box-shadow: inset 5px 5px black"></view>
</view>
</view>
<view>
<text>box-shadow: inset 5px 5px 5px black（harmony暂不支持inset）</text>
<view class="backgroundview">
<view class="common" style="box-shadow: inset 5px 5px 5px black"></view>
</view>
</view>
<view>
<text>box-shadow: inset 5px 10px 5px black（harmony暂不支持inset）</text>
<view class="backgroundview">
<view class="common" style="box-shadow: inset 5px 10px 5px black"></view>
</view>
</view>
<view>
<text>box-shadow: inset 5px 5px 5px 5px black（harmony暂不支持inset）</text>
<view class="backgroundview">
<view class="common" style="box-shadow: inset 5px 5px 5px 5px black"></view>
</view>
</view>
<view>
<text>box-shadow: inset -5px -5px 5px black（harmony暂不支持inset）</text>
<view class="backgroundview">
<view class="common" style="box-shadow: inset -5px -5px 5px black"></view>
</view>
</view>
<view>
<text>box-shadow: 0px 1px 3px rgba(0,0,0,0.4)</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.4)"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.4)" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>circle: box-shadow: 5px 5px black（正圆）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="border-radius: 31px; box-shadow: 5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="border-radius: 31px; box-shadow: 5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>circle: box-shadow: 5px 5px 5px black（椭圆）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="border-radius: 24px; box-shadow: 5px 5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="border-radius: 24px; box-shadow: 5px 5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>circle: box-shadow: 5px 10px 5px black（正圆）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="border-radius: 31px; box-shadow: 5px 10px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="border-radius: 31px; box-shadow: 5px 10px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>circle: box-shadow: 5px 5px 5px 5px black（椭圆）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="border-radius: 24px; box-shadow: 5px 5px 5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="border-radius: 24px; box-shadow: 5px 5px 5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>circle: box-shadow: -5px -5px 5px black（正圆）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view class="common" style="border-radius: 31px; box-shadow: -5px -5px 5px black"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view class="common" style="border-radius: 31px; box-shadow: -5px -5px 5px black" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>circle: box-shadow: 0px 1px 3px rgba(0,0,0,0.4)（椭圆）</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="border-radius: 24px; box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.4)"></view>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<view class="common-rect" style="border-radius: 24px; box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.4)" flatten></view>
</view>
</view>
</view>
</view>
<view>
<text>点击动态切换 box-shadow: none</text>
<view class="backgroundview" @click="changed">
<view :class="['common', disabled ? 'disabledShadow' : 'shadow']"></view>
</view>
</view>
<view>
<text>点击动态切换 box-shadow: 非法值</text>
<view class="backgroundview" @click="changed">
<view :class="['common', disabled ? 'invalidShadow' : 'shadow']"></view>
</view>
</view>
<view>
<text>box-shadow父视图动态改变高度的渲染效果</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<view style="justify-content: center;align-items: center;width: 75px;background-color: green;box-shadow: 0 0 10px">
<view>
<textarea id="dynamic-height-textarea" style="margin: 10px;background-color: aqua;height: 16px;width: 55px;" value="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"></textarea>
</view>
</view>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<view style="justify-content: center;align-items: center;width: 75px;background-color: green;box-shadow: 0 0 10px" flatten>
<view>
<textarea id="dynamic-height-textarea-flat" style="margin: 10px;background-color: aqua;height: 16px;width: 55px;" value="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"></textarea>
</view>
</view>
</view>
</view>
</view>
</view>
<view>
<text>text组件: box-shadow: 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<text class="text-shadow" style="box-shadow: 5px 5px black;">文本</text>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<text class="text-shadow" style="box-shadow: 5px 5px black;" flatten>文本</text>
</view>
</view>
</view>
</view>
<view>
<text>text组件: box-shadow: 5px 5px 5px #00FF00</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<text class="text-shadow-rect" style="box-shadow: 5px 5px 5px #00FF00;">文本</text>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<text class="text-shadow-rect" style="box-shadow: 5px 5px 5px #00FF00;" flatten>文本</text>
</view>
</view>
</view>
</view>
<view>
<text style="font-weight: bold; margin-top: 20px;">圆形图片</text>
</view>
<view>
<text>image组件: box-shadow: 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow" style="box-shadow: 5px 5px black;" src="/static/test-image/logo.png"></image>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow" style="box-shadow: 5px 5px black;" src="/static/test-image/logo.png" flatten></image>
</view>
</view>
</view>
</view>
<view>
<text>image组件: box-shadow: 5px 5px 5px #00FF00</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<image class="image-shadow-rect" style="box-shadow: 5px 5px 5px #00FF00;" src="/static/test-image/logo.png"></image>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<image class="image-shadow-rect" style="box-shadow: 5px 5px 5px #00FF00;" src="/static/test-image/logo.png" flatten></image>
</view>
</view>
</view>
</view>
<view>
<text>image组件（正圆）: box-shadow: 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow-circle" style="border-radius: 31px; box-shadow: 5px 5px black;" src="/static/test-image/logo.png"></image>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow-circle" style="border-radius: 31px; box-shadow: 5px 5px black;" src="/static/test-image/logo.png" flatten></image>
</view>
</view>
</view>
</view>
<view>
<text style="font-weight: bold; margin-top: 20px;">方形图片</text>
</view>
<view>
<text>image组件: box-shadow: 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow" style="box-shadow: 5px 5px black;" src="/static/logo_square.jpeg"></image>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow" style="box-shadow: 5px 5px black;" src="/static/logo_square.jpeg" flatten></image>
</view>
</view>
</view>
</view>
<view>
<text>image组件: box-shadow: 5px 5px 5px #00FF00</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview-rect">
<image class="image-shadow-rect" style="box-shadow: 5px 5px 5px #00FF00;" src="/static/logo_square.jpeg"></image>
</view>
</view>
<view class="row-item">
<view class="backgroundview-rect">
<image class="image-shadow-rect" style="box-shadow: 5px 5px 5px #00FF00;" src="/static/logo_square.jpeg" flatten></image>
</view>
</view>
</view>
</view>
<view>
<text>image组件（正圆）: box-shadow: 5px 5px black</text>
<view class="row-container">
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow-circle" style="border-radius: 31px; box-shadow: 5px 5px black;" src="/static/logo_square.jpeg"></image>
</view>
</view>
<view class="row-item">
<view class="backgroundview">
<image class="image-shadow-circle" style="border-radius: 31px; box-shadow: 5px 5px black;" src="/static/logo_square.jpeg" flatten></image>
</view>
</view>
</view>
</view>
<view class="uni-common-mt">
<text class="uni-title-text">setProperty 设置与 getPropertyValue 获取 box-shadow </text>
</view>
<!-- 普通版本 -->
<view class="test-container">
<!-- view 组件测试 -->
<view class="test-item">
<text class="uni-subtitle-text">view 组件</text>
<text class="uni-info">设置值: {{boxShadow}}</text>
<text class="uni-info">获取值: {{boxShadowActual}}</text>
<view class="test-box">
<view ref="viewRef" class="common-dynamic test-view" :style="{ boxShadow: boxShadow }">
<text class="common-text">view</text>
</view>
</view>
</view>
<!-- text 组件测试 -->
<view class="test-item">
<text class="uni-subtitle-text">text 组件</text>
<text class="uni-info">设置值: {{boxShadow}}</text>
<text class="uni-info">获取值: {{boxShadowActualText}}</text>
<view class="test-box">
<text ref="textRef" class="common-dynamic common-text test-text" :style="{ boxShadow: boxShadow }">text</text>
</view>
</view>
<!-- image 组件测试 -->
<view class="test-item">
<text class="uni-subtitle-text">image 组件</text>
<text class="uni-info">设置值: {{boxShadow}}</text>
<text class="uni-info">获取值: {{boxShadowActualImage}}</text>
<view class="test-box">
<image ref="imageRef" class="common-dynamic test-image" :style="{ boxShadow: boxShadow }" src="/static/test-image/logo.png"></image>
</view>
</view>
</view>
<!-- 拍平版本（注意：不支持 inset 值） -->
<view class="test-container" v-if="!boxShadow.includes('inset')">
<!-- view 组件拍平测试 -->
<view class="test-item">
<text class="uni-subtitle-text">view 组件拍平</text>
<text class="uni-info">设置值: {{boxShadow}}</text>
<text class="uni-info">获取值: {{boxShadowActualFlat}}</text>
<view class="test-box">
<view ref="viewRefFlat" class="common-dynamic test-view-flatten" :style="{ boxShadow: boxShadow }" flatten>
<text class="common-text">view</text>
</view>
</view>
</view>
<!-- text 组件拍平测试 -->
<view class="test-item">
<text class="uni-subtitle-text">text 组件拍平</text>
<text class="uni-info">设置值: {{boxShadow}}</text>
<text class="uni-info">获取值: {{boxShadowActualTextFlat}}</text>
<view class="test-box">
<text ref="textRefFlat" class="common-dynamic common-text test-text-flatten" :style="{ boxShadow: boxShadow }" flatten>text</text>
</view>
</view>
<!-- image 组件拍平测试 -->
<view class="test-item">
<text class="uni-subtitle-text">image 组件拍平</text>
<text class="uni-info">设置值: {{boxShadow}}</text>
<text class="uni-info">获取值: {{boxShadowActualImageFlat}}</text>
<view class="test-box">
<image ref="imageRefFlat" class="common-dynamic test-image-flatten" :style="{ boxShadow: boxShadow }" flatten src="/static/test-image/logo.png"></image>
</view>
</view>
</view>
<!-- 测试控制区域 -->
<view class="uni-common-mt uni-common-mb">
<text class="uni-tips">第一个枚举值，'' (空字符串) - 空值情况</text>
<enum-data :compact="true" :items="boxShadowEnum" title="box-shadow 枚举值" @change="radioChangeBoxShadow"></enum-data>
<input-data :defaultValue="boxShadow" title="box-shadow 自定义值" type="text" @confirm="inputChangeBoxShadow"></input-data>
</view>
</view>
<!-- #ifdef APP -->
</scroll-view>
<!-- #endif -->
</template>
<script setup lang="uts">
import { ItemType } from '@/components/enum-data/enum-data-types'
const disabled = ref(false)
const changed = () => {
disabled.value = !disabled.value
}
const boxShadow = ref('5px 5px black')
const boxShadowActual = ref('')
const boxShadowActualText = ref('')
const boxShadowActualImage = ref('')
const boxShadowActualFlat = ref('')
const boxShadowActualTextFlat = ref('')
const boxShadowActualImageFlat = ref('')
const viewRef = ref(null as UniElement | null)
const textRef = ref(null as UniTextElement | null)
const imageRef = ref(null as UniImageElement | null)
const viewRefFlat = ref(null as UniElement | null)
const textRefFlat = ref(null as UniTextElement | null)
const imageRefFlat = ref(null as UniImageElement | null)
const boxShadowEnum: ItemType[] = [
{ value: 0, name: '' },
{ value: 1, name: 'none' },
{ value: 2, name: '5px 5px black' },
{ value: 3, name: '5px 5px 5px black' },
{ value: 4, name: '10px 10px 10px red' },
{ value: 5, name: '5px 5px 5px 5px black' },
{ value: 6, name: '-5px -5px 5px black' },
{ value: 7, name: '0px 1px 3px rgba(0,0,0,0.4)' },
]
const getPropertyValues = (value: string) => {
boxShadowActual.value = viewRef.value?.style.getPropertyValue('box-shadow') ?? ''
if (!value.includes('inset')) {
boxShadowActualFlat.value = viewRefFlat.value?.style.getPropertyValue('box-shadow') ?? ''
} else {
boxShadowActualFlat.value = '不支持 inset'
}
boxShadowActualText.value = textRef.value?.style.getPropertyValue('box-shadow') ?? ''
if (!value.includes('inset')) {
boxShadowActualTextFlat.value = textRefFlat.value?.style.getPropertyValue('box-shadow') ?? ''
} else {
boxShadowActualTextFlat.value = '不支持 inset'
}
boxShadowActualImage.value = imageRef.value?.style.getPropertyValue('box-shadow') ?? ''
if (!value.includes('inset')) {
boxShadowActualImageFlat.value = imageRefFlat.value?.style.getPropertyValue('box-shadow') ?? ''
} else {
boxShadowActualImageFlat.value = '不支持 inset'
}
}
const changeBoxShadow = (value: string) => {
boxShadow.value = value
viewRef.value?.style.setProperty('box-shadow', value)
if (!value.includes('inset')) {
viewRefFlat.value?.style.setProperty('box-shadow', value)
}
textRef.value?.style.setProperty('box-shadow', value)
if (!value.includes('inset')) {
textRefFlat.value?.style.setProperty('box-shadow', value)
}
imageRef.value?.style.setProperty('box-shadow', value)
if (!value.includes('inset')) {
imageRefFlat.value?.style.setProperty('box-shadow', value)
}
// 使用 nextTick 确保样式已应用后再获取值
nextTick(() => {
getPropertyValues(value)
})
}
const radioChangeBoxShadow = (index: number) => {
const selectedItem = boxShadowEnum.find((item): boolean => item.value === index)
if (selectedItem != null) {
changeBoxShadow(selectedItem.name)
}
}
const inputChangeBoxShadow = (value: string) => {
changeBoxShadow(value)
}
onReady(() => {
nextTick(() => {
const element = uni.getElementById("dynamic-height-textarea")
element?.style.setProperty("height", "26px")
})
getPropertyValues(boxShadow.value)
})
defineExpose({
radioChangeBoxShadow
})
</script>
<style>
.common {
width: 50px;
height: 50px;
background-color: brown;
}
.common-rect {
width: 48px;
height: 24px;
background-color: brown;
}
.backgroundview {
width: 75px;
height: 75px;
background-color: white;
justify-content: center;
align-items: center;
}
.backgroundview-rect {
width: 75px;
height: 50px;
background-color: white;
justify-content: center;
align-items: center;
}
.row-container {
flex-direction: row;
align-items: flex-start;
margin-bottom: 10px;
}
.row-item {
flex: 1;
margin-right: 10px;
}
.big{
width: 200px;
height: 200px;
}
.shadow {
box-shadow: 5px 5px black;
}
.disabledShadow {
box-shadow: none;
}
.invalidShadow {
box-shadow: abcd;
}
.text-shadow {
width: 62px;
height: 62px;
background-color: brown;
font-size: 12px;
color: white;
}
.text-shadow-rect {
width: 62px;
height: 31px;
background-color: brown;
font-size: 12px;
color: white;
}
.image-shadow {
width: 62px;
height: 62px;
background-color: brown;
}
.image-shadow-rect {
width: 62px;
height: 31px;
background-color: brown;
}
.image-shadow-circle {
width: 62px;
height: 62px;
background-color: brown;
}
.image-shadow-ellipse {
width: 62px;
height: 40px;
background-color: brown;
}
/* 多组件横向布局样式 */
.test-container {
flex-direction: row;
justify-content: space-between;
margin-top: 10px;
}
.test-item {
flex: 1;
margin: 0 5px;
}
.test-box {
width: 100%;
height: 80px;
padding: 10px;
background-color: gray;
}
.common-dynamic{
width: 50px;
height: 50px;
background-color: green;
}
.common-text {
font-size: 10px;
color: white;
}
</style>
# App平台差异
- app平台 默认阴影颜色为黑色（#000000）
- app-ios平台 box-shadow 和 overflow: hidden 不能同时设置，添加了阴影会导致 overflow：hidden 失效
- app-ios平台 设置box-shadow的view背景无法透明，因为iOS系统 box-shadow 是在view的背景下绘制的，当view背景色为透明时，背景将显示box-shadow的颜色，因此为避免此差异建议给box-shadow的view设置非透明背景色
- app-Harmony 平台不支持 inset 和阴影扩散半径
